YZ85 YZ85X OWNER'S MANUAL - yamahamotorsports.com · MOTORCYCLIST” booklets supplied with this motorcycle when new or available from your Yamaha dealer. Children differ Children

5PA-28199-16

YZ85X

OWNER’S MANUAL

LIT-11626-21-08

EAU10041

U5PA16E0.book Page 1 Monday, April 9, 2007 1:24 PM

INTRODUCTIONEAU42040

Congratulations on your purchase of the Yamaha YZ85X. This model is the result of Yamaha’s vast experience in the pro-duction of fine sporting, touring, and pacesetting racing machines. It represents the high degree of craftsmanship and reli-ability that have made Yamaha a leader in these fields.This manual will give you an understanding of the operation, inspection, and basic maintenance of this motorcycle. If youhave any questions concerning the operation or maintenance of your motorcycle, please consult a Yamaha dealer.AN IMPORTANT SAFETY MESSAGE:

� READ THIS MANUAL, THE “PARENTS, YOUNGSTERS AND OFF-HIGHWAY MOTORCYCLES” BOOKLET, ANDTHE “TIPS AND PRACTICE GUIDE FOR THE OFF HIGHWAY MOTORCYCLIST” BOOKLET CAREFULLY ANDCOMPLETELY BEFORE OPERATING THIS MOTORCYCLE. MAKE SURE YOU UNDERSTAND ALL INSTRUC-TIONS.

� PAY CLOSE ATTENTION TO THE WARNING AND CAUTION LABELS ON THE MOTORCYCLE.� NEVER OPERATE A MOTORCYCLE WITHOUT PROPER TRAINING OR INSTRUCTION.

AN IMPORTANT NOTE TO PARENTS:This motorcycle is not a toy. Before you let your child ride this motorcycle, you should understand the instructions and warn-ings in this Owner’s Manual. Then be sure your child understands and will follow them. Also read the “PARENTS, YOUNG-STERS AND OFF-HIGHWAY MOTORCYCLES” and the “TIPS AND PRACTICE GUIDE FOR THE OFF HIGHWAYMOTORCYCLIST” booklets supplied with this motorcycle when new or available from your Yamaha dealer. Children differin skills, physical abilities, and judgment. Some children may not be able to operate a motorcycle safely. Parents should su-pervise their child’s use of the motorcycle at all times. Parents should permit continued use only if they determine that thechild has the ability to operate the motorcycle safely.MOTORCYCLES ARE SINGLE TRACK VEHICLES. THEIR SAFE USE AND OPERATION ARE DEPENDENT UPONTHE USE OF PROPER RIDING TECHNIQUES AS WELL AS THE EXPERTISE OF THE OPERATOR. EVERY OPERA-TOR SHOULD KNOW THE FOLLOWING REQUIREMENTS BEFORE RIDING THIS MOTORCYCLE.HE OR SHE SHOULD:

� OBTAIN THOROUGH INSTRUCTIONS FROM A COMPETENT SOURCE ON ALL ASPECTS OF MOTORCYCLEOPERATION.

� OBSERVE THE WARNINGS AND MAINTENANCE REQUIREMENTS IN THE OWNER’S MANUAL.


INTRODUCTION� OBTAIN QUALIFIED TRAINING IN SAFE AND PROPER RIDING TECHNIQUES.� OBTAIN PROFESSIONAL TECHNICAL SERVICE AS INDICATED BY THE OWNER’S MANUAL AND/OR WHEN

MADE NECESSARY BY MECHANICAL CONDITIONS.


IMPORTANT MANUAL INFORMATIONEAU39300

Particularly important information is distinguished in this manual by the following notations:

NOTE:� This manual should be considered a permanent part of this motorcycle and should remain with it even if the motorcycle

is subsequently sold.� Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most

current product information available at the time of printing, there may be minor discrepancies between your motorcycleand this manual. If you have any questions concerning this manual, please consult your Yamaha dealer.

The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

Failure to follow WARNING instructions could result in severe injury or death to the motorcycle operator, a bystander or a person inspecting or repairing the motor-cycle.

A CAUTION indicates special precautions that must be taken to avoid damage to the motorcycle.

A NOTE provides key information to make procedures easier or clearer.

WARNING

CAUTION:

NOTE:


IMPORTANT MANUAL INFORMATION

WARNINGEWA14460

PLEASE READ THIS MANUAL, THE “TIPS AND PRACTICE GUIDE FOR THE OFF HIGHWAY MOTORCYCLIST” ANDTHE “PARENTS, YOUNGSTERS AND OFF-HIGHWAY MOTORCYCLES” BOOKLETS CAREFULLY AND COMPLETE-LY BEFORE OPERATING OR ALLOWING YOUR CHILD TO OPERATE THIS MOTORCYCLE. DO NOT ATTEMPT TOOPERATE THIS MOTORCYCLE UNTIL YOU HAVE ATTAINED ADEQUATE KNOWLEDGE OF ITS CONTROLS ANDOPERATING FEATURES AND UNTIL YOU HAVE BEEN TRAINED IN SAFE AND PROPER RIDING TECHNIQUES.REGULAR INSPECTIONS AND CAREFUL MAINTENANCE, ALONG WITH GOOD RIDING SKILLS, WILL ENSURETHAT YOU SAFELY ENJOY THE CAPABILITIES AND THE RELIABILITY OF THIS MOTORCYCLE.

WARNINGEWA14350

THIS MOTORCYCLE IS DESIGNED AND MANUFACTURED FOR OFF-ROAD USE ONLY. IT IS ILLEGAL TO OPER-ATE THIS MOTORCYCLE ON ANY PUBLIC STREET, ROAD OR HIGHWAY. SUCH USE IS PROHIBITED BY LAW.THIS MOTORCYCLE COMPLIES WITH ALMOST ALL STATE OFF-HIGHWAY NOISE LEVEL AND SPARK ARRESTERLAWS AND REGULATIONS. PLEASE CHECK YOUR LOCAL RIDING LAWS AND REGULATIONS BEFORE OPERAT-ING THIS MOTORCYCLE.

*Product and specifications are subject to change without notice.


IMPORTANT MANUAL INFORMATION

EAU10192

YZ85XOWNER’S MANUAL

©2007 by Yamaha Motor Corporation, U.S.A.1st edition, April 2007

All rights reserved.Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation, U.S.A.

is expressly prohibited.Printed in Japan.

P/N LIT-11626-21-08

AFFIX DEALER

LABEL HERE


TABLE OF CONTENTSSAFETY INFORMATION ..................1-1

Safe riding .......................................1-1Location of important labels ............1-4

DESCRIPTION ..................................2-1Left view ..........................................2-1Right view ........................................2-2Controls and instruments.................2-3

INSTRUMENT AND CONTROL FUNCTIONS ....................3-1

Handlebar switch ............................3-1Clutch lever .....................................3-1Shift pedal .......................................3-1Brake lever .....................................3-2Brake pedal ....................................3-2Fuel tank cap ..................................3-3Fuel .................................................3-3Fuel tank breather hose ..................3-5Fuel cock ........................................3-5Starter (choke) knob .......................3-6Kickstarter .......................................3-6Seat ................................................3-6Adjusting the front fork ....................3-7Front fork bleeding ..........................3-8Adjusting the shock

absorber assembly ......................3-9Removable sidestand ...................3-11

PRE-OPERATION CHECKS ..............4-1Pre-operation check list ..................4-2

OPERATION AND IMPORTANT RIDING POINTS .......... 5-1

Starting and warming up a cold engine .............................. 5-1

Starting a warm engine .................. 5-1Shifting ........................................... 5-2Engine break-in .............................. 5-3Parking ........................................... 5-4

PERIODIC MAINTENANCE AND MINOR REPAIR ................................. 6-1

Periodic maintenance and lubrication chart .......................... 6-2

Checking the spark plug ................. 6-8Transmission oil ............................. 6-9Coolant ......................................... 6-10Cleaning the air filter element ...... 6-12Adjusting the carburetor ............... 6-14Adjusting the engine

idling speed ............................... 6-14Adjusting the throttle cable

free play .................................... 6-15Tires ............................................. 6-15Spoke wheels ............................... 6-17Accessories and

replacement parts ..................... 6-17Adjusting the clutch lever

free play .................................... 6-18Checking the front brake lever

free play .................................... 6-18

Checking the front and rear brake pads ........................ 6-19

Checking the brake fluid level ...... 6-20Changing the brake fluid .............. 6-21Drive chain slack .......................... 6-21Cleaning and

lubricating the drive chain ......... 6-22Checking and

lubricating the cables ................ 6-23Checking and lubricating

the throttle grip and cable ......... 6-23Checking and lubricating

the brake and shift pedals ........ 6-24Checking and lubricating

the brake and clutch levers ...... 6-24Lubricating the swingarm

pivots ........................................ 6-25Lubricating the rear

suspension ............................... 6-25Checking the front fork ................. 6-25Checking the steering .................. 6-26Checking the wheel bearings ....... 6-27Supporting the motorcycle ........... 6-27Front wheel .................................. 6-28Rear wheel ................................... 6-28Troubleshooting ........................... 6-30Troubleshooting charts ................ 6-31

MOTORCYCLE CARE AND STORAGE ......................................... 7-1

Matte color caution ........................ 7-1

U5PA16E0.book Page 1 Wednesday, April 11, 2007 3:37 PM

TABLE OF CONTENTSCare ................................................7-1Storage ...........................................7-3

SPECIFICATIONS .............................8-1

CONSUMER INFORMATION.............9-1Identification numbers ....................9-1YAMAHA MOTOR CORPORATION,

U.S.A. YZ/WR MOTORCYCLE LIMITED WARRANTY ................9-2


1-1

1

SAFETY INFORMATION EAU41460

Safe riding� Always make pre-operation

checks. Careful checks may helpprevent an accident.

� This motorcycle is designed for off-road use only, therefore, it is illegalto operate it on public streets,roads, or highways, even a dirt orgravel one. Off-road use on publiclands may be illegal. Please checklocal regulations before riding.

� This motorcycle is designed to car-ry the operator only. No passen-gers.

� Many accidents involve inexperi-enced operators.• Make sure that the operator is

qualified and that you only lendyour motorcycle to other quali-fied operators.

• Know your skills and limits.Staying within your limits mayhelp you to avoid an accident.

� Many accidents have been causedby error of the motorcycle opera-tor. A typical error made by the op-erator is veering wide on a turndue to EXCESSIVE SPEED or un-

dercornering (insufficient lean an-gle for the speed). Never travelfaster than warranted by condi-tions.

� Ride cautiously in unfamiliar ar-eas. You may encounter hiddenobstacles that could cause an ac-cident.

� The posture of the operator is im-portant for proper control. The op-erator should keep both hands onthe handlebar and both feet on theoperator footrests during operationto maintain control of the motor-cycle.

� Never ride under the influence ofalcohol or other drugs.

� Be sure the transmission is in neu-tral before starting the engine.

Protective apparelThe majority of fatalities from motor-cycle accidents are the result of headinjuries. The use of a safety helmet isthe single most critical factor in the pre-vention or reduction of head injuries.

� Always wear an approved helmet.

� Wear a face shield or goggles.Wind in your unprotected eyescould contribute to an impairmentof vision that could delay seeing ahazard.

� The use of a jacket, heavy boots,trousers, gloves, etc., is effective inpreventing or reducing abrasionsor lacerations.

� Never wear loose-fitting clothes,otherwise they could catch on thecontrol levers, footrests, or wheelsand cause injury or an accident.

� Never touch the engine or exhaustsystem during or after operation.They become very hot and cancause burns. Always wear protec-tive clothing that covers your legs,ankles, and feet.

ModificationsModifications made to this motorcyclenot approved by Yamaha, or the re-moval of original equipment, may ren-der the motorcycle unsafe for use andmay cause severe personal injury.Modifications may also make yourmotorcycle illegal to use.


SAFETY INFORMATION

1-2

1

Loading and accessoriesAdding accessories to your motorcyclecan adversely affect stability and han-dling if the weight distribution of themotorcycle is changed. To avoid thepossibility of an accident, use extremecaution when adding accessories toyour motorcycle. Use extra care whenriding a motorcycle that has added ac-cessories. Here are some generalguidelines to follow if adding accesso-ries to your motorcycle:Loading

� Accessory weight should be keptas low and close to the motorcycleas possible. Make sure to distrib-ute the weight as evenly as possi-ble on both sides of the motorcycleto minimize imbalance or instabili-ty.

� Shifting weights can create a sud-den imbalance. Make sure that ac-cessories are securely attached tothe motorcycle before riding.Check accessory mounts fre-quently.

� Never attach any large or heavyitems to the handlebar, front fork,or front fender.

AccessoriesGenuine Yamaha accessories havebeen specifically designed for use onthis motorcycle. Since Yamaha cannottest all other accessories that may beavailable, you must personally be re-sponsible for the proper selection, in-stallation and use of non-Yamahaaccessories. Use extreme cautionwhen selecting and installing any ac-cessories.Keep these guidelines in mind formounting accessories in addition tothose provided under “Loading”.

� Never install accessories or thatwould impair the performance ofyour motorcycle. Carefully inspectthe accessory before using it tomake sure that it does not in anyway reduce ground clearance orcornering clearance, limit suspen-sion travel, steering travel or con-trol operation.• Accessories fitted to the handle-

bar or the front fork area cancreate instability due to improperweight distribution or aerody-namic changes. If accessoriesare added to the handlebar or

front fork area, they must be aslightweight as possible andshould be kept to a minimum.

• Bulky or large accessories mayseriously affect the stability ofthe motorcycle due to aerody-namic effects. Wind may at-tempt to lift the motorcycle, orthe motorcycle may become un-stable in cross winds.

• Certain accessories can dis-place the operator from his orher normal riding position. Thisimproper position limits the free-dom of movement of the opera-tor and may limit control ability,therefore, such accessories arenot recommended.

� Use caution when adding electri-cal accessories. If electrical acces-sories exceed the capacity of themotorcycle’s electrical system anelectric failure could result, whichcould cause a dangerous loss ofengine power.


SAFETY INFORMATION

1-3

1

Gasoline and exhaust gas� GASOLINE IS HIGHLY FLAMMA-

BLE:• Be sure to always use a fresh

mixture of oil and gasoline.• Always turn the engine off when

refueling.• Take care not to spill any gaso-

line on the engine or exhaustpipe/muffler when refueling.

• Never refuel while smoking or inthe vicinity of an open flame.

� Never start the engine or let it runfor any length of time in a closedarea. The exhaust fumes are poi-sonous and may cause loss ofconsciousness and death within ashort time. Always operate yourmotorcycle in an area that has ad-equate ventilation.

� Always turn the engine off beforeleaving the motorcycle unattend-ed. When parking the motorcycle,note the following:• The engine and exhaust

pipe/muffler may be hot, there-fore, park the motorcycle in a

place where pedestrians or chil-dren are not likely to touch thesehot areas.

• Do not park the motorcycle on aslope or soft ground, otherwise itmay fall over.

• Do not park the motorcycle neara flammable source (e.g., a ker-osene heater, or near an openflame), otherwise it could catchfire.

� When transporting the motorcyclein another vehicle, make sure thatit is kept upright and that the fuelcock is turned to “OFF”. If themotorcycle should lean over, gas-oline may leak out of the carbure-tor or fuel tank.

� If you should swallow any gaso-line, inhale a lot of gasoline vapor,or allow gasoline to get into youreyes, see your doctor immediately.If any gasoline spills on your skinor clothing, immediately wash theaffected area with soap and waterand change your clothes.


SAFETY INFORMATION

1-4

1

EAU41370

Location of important labels Please read the following important labels carefully before operating this vehicle.


SAFETY INFORMATION

1-5

14

5

1

2

3WARNING

Rinding as a passenger can cause the vehicleto go out of control.Loss of control can cause a collisionor rollover, which can result in severe injuryor death.

NEVER ride as a passenger.

3XJ-2151H-A1

WARNINGBEFORE YOU OPERATE THIS VEHICLE, READTHE OWNER’S MANUAL AND ALL LABELS.NEVER CARRY A PASSENGER. You increaseyour risk of losing control if you carry a passenger.NEVER OPERATE THIS VEHICLE ON PUBLICROADS. You can collide with another vehicle ifyou operate this vehicle on a public road.ALWAYS WEAR AN APPROVED MOTORCYCLEHELMET, eye protection, and protective clothing.EXPERIENCED RIDER ONLY.

5PA-2118K-00

Cold tire normal pressure should be set asfollows.FRONT : 100kPa, {1.00kgf/cm2}, 15psiREAR : 100kPa, {1.00kgf/cm2}, 15psi

3RV-21668-A0

TIRE INFOMATION

Use premium unleadedgasoline/oil premix only.

3XJ-2415E-A1.


DESCRIPTION

2-1

2

EAU10410

Left view

1. Radiator cap (page 6-10)2. Fuel cock (page 3-5)3. Shock absorber assembly spring preload adjusting nut (page 3-9)4. Air filter element (page 6-12)5. Seat (page 3-6)6. Shift pedal (page 3-1)7. Throttle stop screw (page 6-14)8. Starter (choke) knob (page 3-6)


DESCRIPTION

2-2

2

EAU10420

Right view

1. Shock absorber assembly compression damping force adjusting screw (page 3-9)

2. Kickstarter (page 3-6)3. Front fork rebound damping force adjusting screw (page 3-7)4. Bleed screw (page 3-8)5. Front fork compression damping force adjusting screw (page 3-7)6. Spark plug cap (page 6-8)7. Transmission oil filler cap (page 6-9)8. Coolant drain bolt (page 6-11)

9. Brake pedal (page 3-2)10.Transmission oil drain bolt (page 6-9)11.Shock absorber assembly rebound damping force adjusting screw

(page 3-9)


DESCRIPTION

2-3

2

EAU10430

Controls and instruments

1. Clutch lever (page 3-1)2. Left handlebar switch (page 3-1)3. Brake lever (page 3-2)4. Throttle grip (page 6-15)5. Fuel tank cap (page 3-3)


INSTRUMENT AND CONTROL FUNCTIONS

3-1

3

EAU40660

Handlebar switch

EAU12670

“ENGINE STOP” button Hold this button pushed until the enginestops in case of an emergency, such aswhen the vehicle overturns or when thethrottle cable is stuck.

EAU12850

Clutch lever

The clutch lever is located at the lefthandlebar grip. To disengage theclutch, pull the lever toward the handle-bar grip. To engage the clutch, releasethe lever. The lever should be pulledrapidly and released slowly for smoothclutch operation.

EAU12870

Shift pedal

The shift pedal is located on the leftside of the engine and is used in com-bination with the clutch lever whenshifting the gears of the 6-speed con-stant-mesh transmission equipped onthis motorcycle.

1. Engine stop button “ENGINE STOP” 1. Clutch lever 1. Shift pedal



3-2

3

EAU41261

Brake lever The brake lever is located at the righthandlebar grip. To apply the frontbrake, pull the lever toward the handle-bar grip.

The brake lever is equipped with a po-sition adjusting bolt. Adjust the distancebetween the brake lever and the han-dlebar grip as follows.

1. Loosen the locknut.

2. While holding the lever pushedaway from the handlebar grip, turnthe adjusting bolt in direction (a) toincrease the distance, and in direc-tion (b) to decrease it.

3. Tighten the locknut.

EAU12941

Brake pedal

The brake pedal is on the right side ofthe motorcycle. To apply the rearbrake, press down on the brake pedal.

1. Brake lever2. Locknut3. Adjusting bolt4. Distance between brake lever and handlebar

grip

Distance between the brake lever and the handlebar grip:

Minimum (shortest):76 mm (2.99 in)

Standard:95 mm (3.74 in)

Maximum (longest):97 mm (3.82 in)

1. Brake pedal



3-3

3

EAU13181

Fuel tank cap

To remove the fuel tank cap, turn itcounterclockwise, and then pull it off.To install the fuel tank cap, insert it intothe tank opening, and then turn it clock-wise.

WARNINGEWA11090

Make sure that the fuel tank cap isproperly closed before riding.

EAU41831

Fuel This motorcycle has been designed touse a premixed fuel of gasoline and 2-stroke engine oil. Always mix the gaso-line and oil in a clean container beforefilling the fuel tank.

CAUTION:ECA15601

Always use fresh gasoline, and fillthe fuel tank with a fresh mix just be-fore riding. Do not use premixed fuelthat is more than a few hours old.

Mixing gasoline and 2-stroke engineoilPour 2-stroke engine oil into a cleancontainer, and then add gasoline. Tomix the fuel thoroughly, shake the con-tainer from side to side.

CAUTION:ECA15590

Use only unleaded gasoline. The useof leaded gasoline will cause severedamage to internal engine parts,such as the piston rings as well as tothe exhaust system.

1. Fuel tank cap

1. 2-stroke engine oil2. Gasoline3. Container

Recommended fuel:Premium unleaded gasoline only

Recommended 2-stroke engine oil:See page 8-1.

Fuel tank capacity:5.0 L (1.32 US gal) (1.10 Imp.gal)

Mixing ratios (gasoline to oil):Break-in period: 15:1After break-in: 30:1



3-4

3

Your Yamaha engine has been de-signed to use premium unleaded gaso-line with a pump octane number[(R+M)/2] of 91 or higher, or a researchoctane number of 95 or higher. Ifknocking (or pinging) occurs, use agasoline of a different brand.If the recommended 2-stroke engine oilis not available, use an equivalent oil.

CAUTION:ECA15551

Never mix two brands of 2-stroke en-gine oil in the same batch. Alwaysuse the same type of oil to ensuremaximum engine performance.Should it be necessary to use a dif-ferent oil brand, be sure to drain thefuel tank and the carburetor floatchamber of the old premixed fuelprior to filling with the new type.

Filling the fuel tank

Make sure that there is sufficient fuel inthe tank. Fill the fuel tank to the bottomof the filler tube as shown.

WARNINGEWA10880

� Do not overfill the fuel tank, oth-erwise it may overflow when thefuel warms up and expands.

� Avoid spilling fuel on the hot en-gine.

CAUTION:ECA10070

Immediately wipe off spilled fuelwith a clean, dry, soft cloth, sincefuel may deteriorate painted surfac-es or plastic parts.

1. Fuel level2. Fuel tank filler tube



3-5

3

EAU41360

Fuel tank breather hose

Before operating the motorcycle:� Check the fuel tank breather hose

connection.� Check the fuel tank breather hose

for cracks or damage, and replaceit if damaged.

� Make sure that the end of the fueltank breather hose is not blocked,and clean it if necessary.

NOTE:If the fuel tank breather hose falls out,reinstall it on the fuel tank cap with thearrow mark on the one-way valve point-ed downward as shown.

EAU41280

Fuel cock The fuel cock supplies fuel from thetank to the carburetor while filtering it al-so.The fuel cock has two positions:

OFF

With the lever in this position, fuel willnot flow. Always return the lever to thisposition when the engine is not running.

ON

With the lever in this position, fuel flowsto the carburetor. Normal riding is donewith the lever in this position.

1. Fuel tank breather hose2. One-way valve

1. Arrow mark positioned over “OFF”

1. Arrow mark positioned over “ON”



3-6

3

EAU13640

Starter (choke) knob

Starting a cold engine requires a richerair-fuel mixture, which is supplied bythe starter (choke).Move the knob in direction (a) to turn onthe starter (choke).Move the knob in direction (b) to turn offthe starter (choke).

EAU13650

Kickstarter

To start the engine, fold out the kick-starter lever, move it down lightly withyour foot until the gears engage, andthen push it down smoothly but force-fully. This model is equipped with a pri-mary kickstarter, allowing the engine tobe started in any gear if the clutch isdisengaged. However, shifting thetransmission into the neutral positionbefore starting is recommended.

EAU13960

Seat

To remove the seatRemove the bolts, and then pull theseat off.

To install the seat1. Insert the projections on the front

of the seat into the seat holders asshown.

1. Starter (choke) knob 1. Kickstarter lever

1. Bolt



3-7

3

2. Place the seat in the original posi-tion, and then tighten the bolts.

NOTE:Make sure that the seat is properly se-cured before riding.

EAU42050

Adjusting the front fork This front fork is equipped with rebounddamping force adjusting screws andcompression damping force adjustingscrews.

WARNINGEWA10180

Always adjust both fork legs equal-ly, otherwise poor handling and lossof stability may result.

Rebound damping force

To increase the rebound damping forceand thereby harden the rebound damp-ing, turn the adjusting screw on eachfork leg in direction (a). To decrease therebound damping force and thereby

soften the rebound damping, turn theadjusting screw on each fork leg in di-rection (b).

Compression damping force

1. Remove the rubber cap by pullingit out of the front fork leg.

1. Projection2. Seat holder

1. Rebound damping force adjusting screw

Rebound damping setting:Minimum (soft):

20 click(s) in direction (b)*Standard:

7 click(s) in direction (b)*Maximum (hard):

1 click(s) in direction (b)** With the adjusting screw fully turned

in direction (a)

1. Rubber cap2. Compression damping force adjusting screw



3-8

3

2. To increase the compressiondamping force and thereby hardenthe compression damping, turn theadjusting screw on each fork leg indirection (a). To decrease thecompression damping force andthereby soften the compressiondamping, turn the adjusting screwon each fork leg in direction (b).

3. Install the rubber cap.

CAUTION:ECA10100

Never attempt to turn an adjustingmechanism beyond the maximum orminimum settings.

NOTE:Although the total number of clicks of adamping force adjusting mechanismmay not exactly match the above spec-ifications due to small differences inproduction, the actual number of clicksalways represents the entire adjustingrange. To obtain a precise adjustment,it would be advisable to check the num-ber of clicks of each damping force ad-justing mechanism and to modify thespecifications as necessary.

EAU14790

Front fork bleeding

When riding in extremely rough condi-tions, the air temperature and pressurein the front fork will rise. This will in-crease the spring preload and hardenthe front suspension. If this occurs,bleed the front fork as follows.

1. Elevate the front wheel by placinga suitable stand under the engine.

NOTE:When bleeding the front fork, thereshould be no weight on the front end ofthe vehicle.

2. Remove the bleed screws and al-low all of the air to escape fromeach fork leg.

Compression damping setting:Minimum (soft):




in direction (a)

1. Bleed screw



3-9

3

WARNINGEWA10200

Always bleed both fork legs, other-wise poor handling and loss of sta-bility may result.

3. Install the bleed screws.

EAU42060

Adjusting the shock absorber assembly This shock absorber assembly isequipped with a spring preload adjust-ing nut, a rebound damping force ad-justing screw and a compressiondamping force adjusting screw.

CAUTION:ECA10100

Never attempt to turn an adjustingmechanism beyond the maximum orminimum settings.

Spring preloadAdjust the spring preload as follows.


2. To increase the spring preload andthereby harden the suspension,turn the adjusting nut in direction(a). To decrease the spring pre-load and thereby soften the sus-pension, turn the adjusting nut indirection (b).

NOTE:� A special wrench can be obtained

at a Yamaha dealer to make thisadjustment.

� The spring preload setting is deter-mined by measuring distance A,shown in the illustration. The long-er distance A is, the lower thespring preload; the shorter dis-tance A is, the higher the springpreload. With each complete turnof the adjusting nut, distance A ischanged by 1.5 mm (0.06 in).

1. Locknut2. Spring preload adjusting nut



3-10

3

3. Tighten the locknut to the specifiedtorque.

CAUTION:ECA10120

Always tighten the locknut againstthe adjusting nut, and then tightenthe locknut to the specified torque.

Rebound damping forceTo increase the rebound damping forceand thereby harden the rebound damp-ing, turn the adjusting screw in direction(a). To decrease the rebound dampingforce and thereby soften the rebounddamping, turn the adjusting screw in di-rection (b).

Compression damping forceTo increase the compression dampingforce and thereby harden the compres-sion damping, turn the adjusting screwin direction (a). To decrease the com-pression damping force and therebysoften the compression damping, turnthe adjusting screw in direction (b).

1. Distance A

Spring preload:Minimum (soft):

Distance A = 218.5 mm (8.60 in)Standard:

Distance A = 215.0 mm (8.46 in)Maximum (hard):

Distance A = 202.5 mm (7.97 in)

Tightening torque:Locknut:

35 Nm (3.5 m·kgf, 25 ft·lbf)

1. Rebound damping force adjusting screw

Rebound damping setting:Minimum (soft):




in direction (a)

1. Compression damping force adjusting screw



3-11

3

NOTE:Although the total number of clicks of adamping force adjusting mechanismmay not exactly match the above spec-ifications due to small differences inproduction, the actual number of clicksalways represents the entire adjustingrange. To obtain a precise adjustment,it would be advisable to check the num-ber of clicks of each damping force ad-justing mechanism and to modify thespecifications as necessary.

WARNINGEWA10220

This shock absorber contains highlypressurized nitrogen gas. For prop-er handling, read and understandthe following information beforehandling the shock absorber. The

manufacturer cannot be held re-sponsible for property damage orpersonal injury that may result fromimproper handling.

� Do not tamper with or attempt toopen the gas cylinder.

� Do not subject the shock ab-sorber to an open flame or otherhigh heat sources, otherwise itmay explode due to excessivegas pressure.

� Do not deform or damage thegas cylinder in any way, as thiswill result in poor damping per-formance.

� Always have a Yamaha dealerservice the shock absorber.

EAU41381

Removable sidestand

This motorcycle is equipped with a re-movable sidestand.

NOTE:Make sure that the sidestand is proper-ly secured when the motorcycle is be-ing supported or is being transported.

WARNINGEWA14601

� Never apply force on the motor-cycle while it is on the side-stand.

� Always remove the sidestandbefore starting out.

Compression damping setting:Minimum (soft):




in direction (a)

1. Sidestand


PRE-OPERATION CHECKS

4-1

4

EAU15593

The condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or lossof tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspec-tion, to check the following points before each ride.

NOTE:Pre-operation checks should be made each time the vehicle is used. Such an inspection can be accomplished in a very shorttime; and the added safety it assures is more than worth the time involved.

WARNINGEWA11150

If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operatingthe vehicle.



4-2

4

EAU15605

Pre-operation check list ITEM CHECKS PAGE

Fuel• Check fuel level in fuel tank.• Always use a fresh mixture of gasoline and oil.• Check fuel line for leakage.

3-3

Transmission oil • Check oil level in transmission case.• If necessary, add recommended oil to specified level. 6-9

Coolant• Check coolant level.• If necessary, add recommended coolant to specified level.• Check cooling system for leakage.

6-10

Front brake

• Check operation.• If soft or spongy, have Yamaha dealer bleed hydraulic system.• Check brake pads for wear.• Replace if necessary.• Check fluid level in reservoir.• If necessary, add recommended brake fluid to specified level.• Check hydraulic system for leakage.

6-19, 6-20

Rear brake

• Check operation.• If soft or spongy, have Yamaha dealer bleed hydraulic system.• Check brake pads for wear.• Replace if necessary.• Check fluid level in reservoir.• If necessary, add recommended brake fluid to specified level.• Check hydraulic system for leakage.

6-19, 6-20

Clutch

• Check operation.• Lubricate cable if necessary.• Check lever free play.• Adjust if necessary.

6-18

Throttle grip

• Make sure that operation is smooth.• Check cable free play.• If necessary, have Yamaha dealer adjust cable free play and lubricate cable and

grip housing.

6-15, 6-23



4-3

4

Drive chain

• Check chain slack.• Adjust if necessary.• Check chain condition.• Lubricate if necessary.

6-21, 6-22

Wheels and tires

• Check for damage.• Check tire condition and tread depth.• Check air pressure.• Correct if necessary.• Check for loose spokes and tighten if necessary.

6-15, 6-17

Shift pedal • Make sure that operation is smooth.• Correct if necessary. 6-24

Brake pedal • Make sure that operation is smooth.• Lubricate pedal pivoting point if necessary. 6-24

Steering • Check that the handlebar can be turned smoothly and has no excessive play. 6-26

Front fork and rear shock ab-sorber assembly • Check that they operate smoothly and there is no oil leakage. 3-7, 3-8, 3-9, 6-25

Chassis fasteners • Make sure that all nuts, bolts and screws are properly tightened.• Tighten if necessary. —

Moving parts and cables

• Check that the control cables move smoothly.• Check that the control cables are not caught when the handlebars are turned or

when the front forks travel up and down.• Lubricate moving parts and cables if necessary.

6-23, 6-24, 6-25, 6-25

Exhaust system • Check that the exhaust pipe is tightly mounted and has no cracks.• Check for leakage. —

Ignition system • Check that all leads and cables are properly connected. 6-8

ITEM CHECKS PAGE


OPERATION AND IMPORTANT RIDING POINTS

5-1

5

EAU41400

WARNINGEWA14610

� This model is designed for off-road use only. Become thor-oughly familiar with all operat-ing controls and their functionsbefore riding. Consult a Yamahadealer regarding any control orfunction that you do not thor-oughly understand.

� Never start the engine or oper-ate it in a closed area for anylength of time. Exhaust fumesare poisonous, and inhalingthem can cause loss of con-sciousness and death within ashort time. Always make surethat there is adequate ventila-tion.

� Before starting out, make surethat the sidestand is removed. Ifthe sidestand is not removed, itwill contact the ground, whichcould distract the operator or af-fect the balance of the motor-cycle, resulting in a possibleloss of control.

EAU41301

Starting and warming up a cold engine

1. Turn the fuel cock lever to “ON”.2. Shift the transmission into the neu-

tral position.3. Turn the starter (choke) on and

completely close the throttle. (Seepage 3-6.)

4. Start the engine by pushing thekickstarter lever down.

CAUTION:ECA11130

For maximum engine life, alwayswarm the engine up before startingoff. Never accelerate hard when theengine is cold!

5. When the engine is warm, turn thestarter (choke) off.

NOTE:The engine is warm when it respondsnormally to the throttle with the starter(choke) turned off.

EAU16660

Starting a warm engine Follow the same procedure as for start-ing a cold engine with the exceptionthat the starter (choke) is not requiredwhen the engine is warm. Instead, startthe engine with the throttle slightlyopen.

NOTE:If the engine does not start after severalkicks, try again with the throttle 1/4 to1/2 open.



5-2

5

EAU16671

Shifting

Shifting gears lets you control theamount of engine power available forstarting off, accelerating, climbing hills,etc.The gear positions are shown in the il-lustration.

NOTE:To shift the transmission into the neu-tral position, press the shift pedal downrepeatedly until it reaches the end of itstravel, and then slightly raise it.

CAUTION:ECA10260

� Even with the transmission inthe neutral position, do notcoast for long periods of timewith the engine off, and do nottow the motorcycle for long dis-tances. The transmission isproperly lubricated only whenthe engine is running. Inade-quate lubrication may damagethe transmission.

� Always use the clutch whilechanging gears to avoid damag-ing the engine, transmission,and drive train, which are notdesigned to withstand theshock of forced shifting.

EAU16690

To start out and accelerate1. Pull the clutch lever to disengage

the clutch.2. Shift the transmission into first

gear.3. Open the throttle gradually and si-

multaneously release the clutch le-ver slowly.

4. Once the motorcycle has reacheda speed high enough to changegears, close the throttle, and at thesame time, quickly pull the clutchlever in.

5. Shift the transmission into secondgear. (Make sure not to shift thetransmission into the neutral posi-tion.)

6. Open the throttle halfway andgradually release the clutch lever.

7. Follow the same procedure whenshifting to the next gear.

EAU16710

To decelerate1. Close the throttle and apply both

the front and the rear brakes toslow the motorcycle.

2. Downshift through the gears andshift the transmission into the neu-tral position when the motorcycleis almost completely stopped.

1. Shift pedal2. Neutral position



5-3

5

EAU41502

Engine break-in 1. Before starting the engine, fill the

fuel tank with a break-in oil-fuelmixture as follows.

2. Start and warm up the engine.Check the operation of the controlsand the engine stop button. (Seepage 3-1.)

3. Operate the motorcycle in the low-er gears at moderate throttle open-ings for five to eight minutes. Stopthe engine and check the sparkplug condition (see page 6-8); itwill show a rich condition duringbreak-in.

4. Allow the engine to cool. Restartthe engine and operate the motor-cycle as in the step above for fiveminutes. Then, very briefly shift tothe higher gears and check thefull-throttle response. Stop the en-gine and check the spark plug.

5. After again allowing the engine tocool, restart and run the motor-cycle for five more minutes. Fullthrottle and the higher gears maybe used, but sustained full-throttleoperation should be avoided. Stopthe engine and check the sparkplug again.

6. Allow the engine to cool, removethe cylinder head and cylinder, andinspect the piston and cylinder.Remove any high spots on the pis-ton with #600-grit wet sandpaper.Clean all components and careful-ly reassemble the cylinder headand cylinder.

WARNINGEWA10320

If you are not familiar with mainte-nance work, have a Yamaha dealerdo it for you.

7. Drain the break-in oil-fuel mixturefrom the fuel tank and refill with thespecified mix. (See page 3-3.)

8. Start the engine and check the op-eration of the motorcycle through-out its entire operating range. Stopthe engine and check the spark

plug condition. Restart the motor-cycle and ride it for about 10 to 15more minutes. The motorcycle willnow be ready to ride normally.

After the engine break-in period, thor-oughly check the motorcycle for looseparts, oil leakage and any other prob-lems. Be sure to inspect and make ad-justments thoroughly, especially cableand drive chain slack and loosespokes. In addition, check all fittingsand fasteners for looseness, and tight-en if necessary.

CAUTION:ECA15560

� When any of the following partshave been replaced, they mustbe broken in.Cylinder or crankshaft:About one hour of break-in op-eration is necessary.Piston, rings or transmissiongears:These parts require about 30minutes of break-in operation athalf-throttle or less. Observe thecondition of the engine carefullyduring operation.

Recommended 2-stroke engine oil:See page 8-1.

Mixing ratio (gasoline to oil):15:1



5-4

5

� If any engine trouble should oc-cur during the engine break-inperiod, immediately have aYamaha dealer check the vehi-cle.

EAU17190

Parking When parking, stop the engine, andthen turn the fuel cock lever to “OFF”.

WARNINGEWA10310

� Since the engine and exhaustsystem can become very hot,park in a place where pedestri-ans or children are not likely totouch them.

� Do not park on a slope or on softground, otherwise the vehiclemay overturn.


PERIODIC MAINTENANCE AND MINOR REPAIR

6-1

6

EAU42070

Safety is an obligation of the owner. Pe-riodic inspection, adjustment and lubri-cation will keep your vehicle in thesafest and most efficient condition pos-sible. The most important points of in-spection, adjustment, and lubricationare explained on the following pages.The intervals given in the periodicmaintenance and lubrication chartshould be simply considered as a gen-eral guide under normal riding condi-tions. However, DEPENDING ON THEWEATHER, TERRAIN, GEOGRAPHI-CAL LOCATION, AND INDIVIDUALUSE, THE MAINTENANCE INTER-VALS MAY NEED TO BE SHORT-ENED.

WARNINGEWA10320

If you are not familiar with mainte-nance work, have a Yamaha dealerdo it for you.



6-2

6

EAU41795

Periodic maintenance and lubrication chart The following chart is intended as a general guide to maintenance and lubrication. Bear in mind that such factors as weather,terrain, geographical location, and individual usage will alter the required maintenance and lubrication intervals. If you are indoubt as to what intervals to follow in maintaining and lubricating your motorcycle, consult your Yamaha dealer.

NOTE:� From the seventh race, repeat the maintenance intervals starting from “Every race”.� Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical

skills.

NO. ITEM ROUTINE Afterbreak-in

Everyrace

Everythird race

Everyfifth race

Asrequired

1 * Piston

• Check piston for carbon deposits and cracks or dam-age.

• Clean.√

√

√

• Replace. √√

2 * Piston rings• Check piston ring end gap and rings for damage. √

• Replace.

3 * Piston pin and smallend bearing

• Check piston pin and small end bearing for damage. √

√ √

• Replace. √

√

4 * Cylinder head

• Check cylinder head for carbon deposits.• Clean. √

√

√

• Check cylinder head gasket for damage.

• Replace cylinder head gasket.

• Tighten cylinder head bolts if necessary. √



6-3

6

√5 * Cylinder

• Check cylinder for score marks or wear.• Clean. √

• Replace. √


Everyrace

Everythird race

Everyfifth race

Asrequired

6 * Clutch

• Check clutch housing, friction plates, clutch platesand clutch springs for wear or damage.

• Adjust.√√

• Replace. √

7 * Transmission

• Change the transmission oil. √

• Check transmission for damage. √

• Replace bearings. √

8 * Shift forks, guide bars,shift cam • Replace if necessary.

• Check all parts for wear and damage.√

9 * Rotor nut(flywheel magneto)

• Tighten. √ √

√

10 * Kickstarter system • Check idle gear for damage.√

• Replace if necessary.

11 * Exhaust system • Check exhaust pipe and muffler for carbon deposits. √√

• Clean. √

√

√

√

√12 * Crankshaft

• Check crankshaft for carbon deposits and damage.

• Clean.



6-4

6


Everyrace

Everythird race

Everyfifth race

Asrequired

√

√

√

13 * Carburetor• Check carburetor settings and for obstructions. √

• Adjust and clean. √

14 Spark plug• Check condition.• Clean and regap. √

• Replace. √

15 Drive chain

• Check chain slack, alignment and condition.• Adjust and thoroughly lubricate chain with Yamaha

chain and cable lube or equivalent.√

√

√

√

√

• Replace. √

16 *

*

Cooling system

• Check coolant level and for leakage. √√

• Check hoses for cracks or damage. √

• Check radiator cap spring operation. √

• Change coolant. Every 2 years √

17 * Chassis fasteners • Check all chassis fitting and fasteners.• Correct or tighten if necessary. √

18 * Air filter element• Clean. √

• Replace. √

19 * Frame • Clean and check for damage. √

20 * Fuel line • Clean and check for leakage. √ √



6-5

6

√

√

21 * Brakes

• Adjust lever position and pedal height.• Lubricate pivot points.• Check brake disk surface.• Check fluid level and for leakage.• Tighten brake disk bolts, caliper bolts, master cylinder

bolts and union bolts.

√

• Replace brake pads. √

• Replace brake fluid. Every year √

22 * Front fork

• Replace oil seals.

• Replace fork oil.

• Clean dust seal and lubricate with lithium-soap-basedgrease.

• Adjust if necessary.

• Check operation and for oil leakage.

√

√ √

√


Everyrace

Everythird race

Everyfifth race

Asrequired

√√

√

23 * Shock absorber assem-bly

• Check operation and adjust.

• Tighten if necessary.

• Lubricate with lithium-soap-based grease. √

(Afterwashing

themotorcycleor riding inthe rain)



6-6

6

EAU42011

NOTE:� Hydraulic brake service

• Regularly check and, if necessary, correct the brake fluid levels.

√

√ √

√

24 *Drive chain roller andsupport guide • Replace if necessary.

• Check for wear or damage.√

25 * Rear suspension• Check operation and tighten if necessary.

• Lubricate with lithium-soap-based grease.


Everyrace

Everythird race

Everyfifth race

Asrequired

√

√

√

√

√

√

√√

√

√

√

√

√

√

√

26 * Steering head

• Check operation, free play, and tighten if necessary.

• Clean and lubricate with lithium-soap-based grease.

• Replace bearings.

27 * Tires and wheels

• Check tire air pressure, wheel runout, spokes forlooseness, and tires for wear.

• Tighten sprocket bolts if necessary.

• Check wheel bearings for looseness.

• Lubricate wheel bearings with lithium-soap-basedgrease.

• Replace wheel bearings.

28 * Moving parts and ca-bles

• Lubricate.

29 * Throttle grip housingand cable

• Check operation and free play.• Adjust the throttle cable free play if necessary.• Lubricate the throttle grip housing and cable.



6-7

6

• Every two years replace the internal components of the brake master cylinders and calipers, and change the brakefluid.

• Replace the brake hoses every four years and if cracked or damaged.



6-8

6

EAU19612

Checking the spark plug The spark plug is an important enginecomponent, which is easy to check.Since heat and deposits will cause anyspark plug to slowly erode, the sparkplug should be removed and checkedin accordance with the periodic mainte-nance and lubrication chart. In addition,the condition of the spark plug can re-veal the condition of the engine.

To remove the spark plug1. Remove the spark plug cap.

2. Remove the spark plug as shown,with a spark plug wrench availableat a Yamaha dealer.

To check the spark plug1. Check that the porcelain insulator

around the center electrode of thespark plug is a medium-to-light tan(the ideal color when the vehicle isridden normally).

NOTE:If the spark plug shows a distinctly dif-ferent color, the engine could be oper-ating improperly. Do not attempt todiagnose such problems yourself. In-stead, have a Yamaha dealer checkthe vehicle.

2. Check the spark plug for electrodeerosion and excessive carbon orother deposits, and replace it ifnecessary.

To install the spark plug1. Measure the spark plug gap with a

wire thickness gauge and, if nec-essary, adjust the gap to specifica-tion.

1. Spark plug cap

1. Spark plug wrench

Specified spark plug:NGK/BR10EG

1. Spark plug gap

Spark plug gap:0.5–0.6 mm (0.020–0.024 in)



6-9

6

2. Clean the surface of the spark pluggasket and its mating surface, andthen wipe off any grime from thespark plug threads.

3. Install the spark plug with thespark plug wrench, and then tight-en it to the specified torque.

NOTE:If a torque wrench is not available wheninstalling a spark plug, a good estimateof the correct torque is 1/4–1/2 turnpast finger tight. However, the sparkplug should be tightened to the speci-fied torque as soon as possible.

4. Install the spark plug cap.

EAU41441

Transmission oil The transmission oil must be checkedfor oil leakage before each ride. If anyleakage is found, have a Yamaha deal-er check and repair the motorcycle. Inaddition, the transmission oil must bechanged at the intervals specified in theperiodic maintenance and lubricationchart.

1. Start the engine, warm it up forseveral minutes, and then turn itoff.

2. Place the motorcycle on a levelsurface and hold it in an upright po-sition.

3. Place an oil pan under the trans-mission to collect the used oil.

4. Remove the oil filler cap and drainbolt to drain the oil from the trans-mission.

5. Install the transmission oil drainbolt, and then tighten it to the spec-ified torque.

6. Add the specified amount of therecommended transmission oil,and then install and tighten the oilfiller cap.

Tightening torque:Spark plug:

20 Nm (2.0 m·kgf, 14 ft·lbf) 1. Transmission oil filler cap2. Transmission oil drain bolt

Tightening torque:Transmission oil drain bolt:

10 Nm (1.0 m·kgf, 7.2 ft·lbf)

Recommended transmission oil:See page 8-1.

Oil change quantity:0.50 L (0.53 US qt) (0.44 Imp.qt)



6-10

6

CAUTION:ECA10452

� In order to prevent clutch slip-page (since the transmission oilalso lubricates the clutch), donot mix any chemical additives.Do not use oils with a dieselspecification of “CD” or oils of ahigher quality than specified. Inaddition, do not use oils labeled“ENERGY CONSERVING II” orhigher.

� Make sure that no foreign mate-rial enters the transmission.

7. Start the engine, and then let it idlefor several minutes while checkingthe transmission for oil leakage. Ifoil is leaking, immediately turn theengine off and check for the cause.

EAU20070

Coolant The coolant level should be checkedbefore each ride. In addition, the cool-ant must be changed at the intervalsspecified in the periodic maintenanceand lubrication chart.

EAUM1292

To check the coolant level1. Place the vehicle on a level sur-

face and hold it in an upright posi-tion.

WARNINGEWA10380

Never attempt to remove the radiatorcap when the engine is hot.

2. Remove the radiator cap andcheck the coolant level in the radi-ator.

NOTE:� The coolant level must be checked

on a cold engine since the levelvaries with engine temperature.

� Make sure that the vehicle is posi-tioned straight up when checkingthe coolant level. A slight tilt to theside can result in a false reading.

NOTE:The coolant should be at the bottom ofthe radiator filler neck. The level willchange with variation of engine temper-ature.

1. Radiator cap



6-11

6

3. If the coolant is below this level,add coolant, and then install theradiator cap.

NOTE:If the engine overheats, see page 6-31for further instructions.

EAUM1312

To change the coolant1. Place the vehicle on a level sur-

face and let the engine cool if nec-essary.

2. Place a container under the engineto collect the used coolant.

WARNINGEWA10380

Never attempt to remove the radiatorcap when the engine is hot.

3. Remove the coolant drain bolt andthen the radiator cap to drain thecooling system.

4. After the coolant is completelydrained, thoroughly flush the cool-ing system with clean tap water.

5. Install the coolant drain bolt, andthen tighten it to the specifiedtorque.

NOTE:Check the washer for damage and re-place it if necessary.

6. Pour the recommended coolantinto the radiator until it is full.

1. Correct coolant level

1. Coolant drain bolt

1. Radiator cap

Tightening torque:Coolant drain bolt:

10 Nm (1.0 m·kgf, 7.2 ft·lbf)

Antifreeze/water mixture ratio:1:1

Recommended antifreeze:High-quality ethylene glycol anti-freeze containing corrosion inhibitors for aluminum engines

Coolant quantity:Radiator capacity (including all routes):

0.54 L (0.57 US qt) (0.48 Imp.qt)



6-12

6

CAUTION:ECA10471

� If coolant is not available, usedistilled water or soft tap waterinstead. Do not use hard wateror salt water since it is harmfulto the engine.

� If water has been used insteadof coolant, replace it with cool-ant as soon as possible, other-wise the cooling system will notbe protected against frost andcorrosion.

� If water has been added to thecoolant, have a Yamaha dealercheck the antifreeze content ofthe coolant as soon as possible,otherwise the effectiveness ofthe coolant will be reduced.

7. Install the radiator cap, start theengine, let it idle for several min-utes, and then turn it off.

8. Remove the radiator cap to checkthe coolant level in the radiator. Ifnecessary, add sufficient coolantuntil it reaches the bottom of theradiator filler neck, and then installthe radiator cap.

9. Start the engine, and then checkthe vehicle for coolant leakage. Ifcoolant is leaking, have a Yamahadealer check the cooling system.

EAU41431

Cleaning the air filter element The air filter element should be cleanedat the intervals specified in the periodicmaintenance and lubrication chart.Clean the air filter element more fre-quently if you are riding in unusuallywet or dusty areas.

1. Remove the seat. (See page 3-6.)2. Remove the air filter case cover as

shown.

1. Air filter case cover



6-13

6

3. Remove the air filter element byremoving the wing bolt and wash-er.

4. Remove the sponge material fromthe air filter element frame.

5. Clean the sponge material withsolvent, and then squeeze the re-maining solvent out.

6. Apply oil of the recommended typeto the entire surface of the spongematerial, and then squeeze the ex-cess oil out.

NOTE:The sponge material should be wet butnot dripping.

7. Pull the sponge material over theair filter element frame.

8. Insert the air filter element into theair filter case with the projectionfacing upward, and then install thewasher and wing bolt.

1. Wing bolt2. Washer3. Sponge material

1. Sponge material2. Air filter element frame

Recommended oil:Yamaha foam air filter oil or other quality foam air filter oil

1. Sponge material2. Projection



6-14

6

CAUTION:ECA10480

� Make sure that the air filter ele-ment is properly seated in theair filter case.

� The engine should never be op-erated without the air filter ele-ment installed, otherwise thepiston(s) and/or cylinder(s) maybecome excessively worn.

9. Install the air filter case cover in theoriginal position as shown.

10. Install the seat.

EAU42110

Adjusting the carburetor The carburetor is an important part ofthe engine and requires very sophisti-cated adjustment. Therefore, most car-buretor adjustments should be left to aYamaha dealer, who has the neces-sary professional knowledge and expe-rience. The adjustment described in thefollowing section, however, may be ser-viced by the owner as part of routinemaintenance.

CAUTION:ECA10550

The carburetor has been set and ex-tensively tested at the Yamaha fac-tory. Changing these settingswithout sufficient technical knowl-edge may result in poor perfor-mance of or damage to the engine.

EAU44390

Adjusting the engine idling speed The engine idling speed must be ad-justed when necessary.

1. Start the engine and thoroughlywarm it up.

2. Turn the throttle stop screw untilthe engine runs at the lowest pos-sible speed.

3. To increase the engine idlingspeed, turn the throttle stop screwin direction (a). To decrease theengine idling speed, turn the throt-tle stop screw in direction (b).

1. Throttle stop screw



6-15

6

EAU21370

Adjusting the throttle cable free play

The throttle cable free play should mea-sure 3.0–5.0 mm (0.12–0.20 in) at thethrottle grip. Periodically check thethrottle cable free play and, if neces-sary, adjust it as follows.

NOTE:The engine idling speed must be cor-rectly adjusted before checking and ad-justing the throttle cable free play.


2. To increase the throttle cable freeplay, turn the adjusting nut in direc-tion (a). To decrease the throttlecable free play, turn the adjustingnut in direction (b).

3. Tighten the locknut.

EAU41820

Tires To maximize the performance, durabil-ity, and safe operation of your motor-cycle, note the following pointsregarding the specified tires.

Tire air pressureThe tire air pressure should be checkedand, if necessary, adjusted before eachride.

WARNINGEWA14380

� The tire air pressure must bechecked and adjusted on coldtires (i.e., when the temperatureof the tires equals the ambienttemperature).

� The tire air pressure must be ad-justed in accordance with theweight of the rider, the ridingspeed, and the riding condi-tions.

1. Throttle cable free play

1. Locknut2. Throttle cable free play adjusting nut

Standard tire air pressure:Front:

100 kPa (15 psi) (1.00 kgf/cm²)Rear:

100 kPa (15 psi) (1.00 kgf/cm²)



6-16

6

Tire inspection

The tires must be checked before eachride.

CAUTION:ECA15580

� Be sure the bead stoppers aretightened. Loose bead stopperswill cause the tire to slip off therim if tire pressure is too low.

� Be sure the valve stem is posi-tioned straight. A tilted valvestem indicates that the tire hasslipped from its original posi-tion on the rim. Rotate the tireso that the valve stem is posi-tioned straight.

If the center tread depth reaches thespecified limit, if the tire has a nail orglass fragments in it, or if the sidewall iscracked, have a Yamaha dealer re-place the tire immediately.

Tire informationThis motorcycle is equipped with spokewheels and tube tires.

WARNINGEWA10460

� The front and rear tires shouldbe of the same make and de-sign, otherwise the handlingcharacteristics of the vehiclecannot be guaranteed.

� After extensive tests, only thetires listed below have been ap-proved for this model byYamaha Motor Co., Ltd.

WARNINGEWA14390

� Have a Yamaha dealer replaceexcessively worn tires. Operat-ing the motorcycle with exces-sively worn tires decreasesriding stability and can lead toloss of control.

� The replacement of all wheel-and brake-related parts, includ-ing the tires, should be left to aYamaha dealer, who has thenecessary professional knowl-edge and experience.

� It is not recommended to patcha punctured tube. If unavoid-able, however, patch the tube

1. Tire sidewall2. Tire tread depth

1

2

Minimum tire tread depth (front and rear):

4.0 mm (0.16 in)

Front tire:Size:

70/100-17 40MManufacturer/model:

DUNLOP/D739FARear tire:

Size:90/100-14 49M

Manufacturer/model:DUNLOP/D756



6-17

6

very carefully and replace it assoon as possible with a high-quality product.

EAU21940

Spoke wheels To maximize the performance, durabil-ity, and safe operation of your motor-cycle, note the following pointsregarding the specified wheels.

� The wheel rims should be checkedfor cracks, bends or warpage, andthe spokes for looseness or dam-age before each ride. If any dam-age is found, have a Yamahadealer replace the wheel. Do notattempt even the smallest repair tothe wheel. A deformed or crackedwheel must be replaced.

� The wheel should be balancedwhenever either the tire or wheelhas been changed or replaced. Anunbalanced wheel can result inpoor performance, adverse han-dling characteristics, and a short-ened tire life.

� Ride at moderate speeds afterchanging a tire since the tire sur-face must first be “broken in” for itto develop its optimal characteris-tics.

EAU40431

Accessories and replacement parts

WARNINGEWA14481

The accessories or replacementparts you choose for your vehicleshould be designed specifically forthis model, and they must be se-curely mounted to maintain the in-herent stability of the originaldesign. Genuine Yamaha Parts andAccessories are designed and test-ed to be compatible with your vehi-cle. Yamaha recommends the use ofGenuine Yamaha Parts and Acces-sories before making a purchase.Use of non-Yamaha-approved ac-cessories or replacement parts maycause loss of handling stability andriding safety. Since Yamaha cannotcontrol the quality of accessories orparts manufactured by other compa-nies, Yamaha cannot be held liablefor any consequences caused bythe use of items which have notbeen approved by Yamaha.



6-18

6

EAU22031

Adjusting the clutch lever free play

The clutch lever free play should mea-sure 10.0–15.0 mm (0.39–0.59 in) asshown. Periodically check the clutch le-ver free play and, if necessary, adjust itas follows.

1. Loosen the locknut at the clutch le-ver.

2. To increase the clutch lever freeplay, turn the adjusting bolt in di-rection (a). To decrease the clutchlever free play, turn the adjustingbolt in direction (b).

3. If the specified clutch lever freeplay could be obtained as de-scribed above, tighten the locknutand skip the rest of the procedure,otherwise, proceed as follows.

4. Fully turn the adjusting bolt in di-rection (a) to loosen the clutch ca-ble.

5. Loosen the locknut further downthe clutch cable.

6. To increase the clutch lever freeplay, turn the adjusting nut in direc-tion (a). To decrease the clutch le-ver free play, turn the adjusting nutin direction (b).

7. Tighten both locknuts.

EAU37911

Checking the front brake lever free play

There should be no free play at thebrake lever end. If there is free play,have a Yamaha dealer inspect thebrake system.

WARNINGEWA14210

A soft or spongy feeling in the brakelever can indicate the presence of airin the hydraulic system. If there is airin the hydraulic system, have aYamaha dealer bleed the system be-fore operating the motorcycle. Air inthe hydraulic system will diminish

1. Clutch lever free play2. Locknut (clutch lever)3. Adjusting bolt

1. Locknut (clutch cable)2. Adjusting nut

1. Brake lever free play



6-19

6

the braking performance, which mayresult in loss of control and an acci-dent.

EAU22311

Checking the front and rear brake pads

Front brake

Rear brake

The front and rear brake pads must bechecked for wear at the intervals spec-ified in the periodic maintenance andlubrication chart. Each brake pad isprovided with a wear indicator, whichallows you to check the brake pad wearwithout having to disassemble thebrake. To check the brake pad wear,check the position of the wear indicatorwhile applying the brake. If a brake padhas worn to the point that the wear indi-cator almost touches the brake disc,have a Yamaha dealer replace thebrake pads as a set.1. Brake pad wear indicator

1. Brake pad wear indicator



6-20

6

EAU22580

Checking the brake fluid level

Front brake

Rear brake

Insufficient brake fluid may allow air toenter the brake system, possibly caus-ing it to become ineffective.

Before riding, check that the brake fluidis above the minimum level mark andreplenish if necessary. A low brake fluidlevel may indicate worn brake padsand/or brake system leakage. If thebrake fluid level is low, be sure to checkthe brake pads for wear and the brakesystem for leakage.Observe these precautions:

� When checking the fluid level,make sure that the top of the brakefluid reservoir is level.

� Use only the recommended qualitybrake fluid, otherwise the rubberseals may deteriorate, causingleakage and poor braking perfor-mance.

� Refill with the same type of brakefluid. Mixing fluids may result in aharmful chemical reaction andlead to poor braking performance.

� Be careful that water does not en-ter the brake fluid reservoir whenrefilling. Water will significantlylower the boiling point of the fluidand may result in vapor lock.

� Brake fluid may deteriorate paint-ed surfaces or plastic parts. Al-ways clean up spilled fluidimmediately.

� As the brake pads wear, it is nor-mal for the brake fluid level to grad-ually go down. However, if thebrake fluid level goes down sud-denly, have a Yamaha dealercheck the cause.

1. Minimum level mark

1. Minimum level mark

Recommended brake fluid:DOT 4



6-21

6

EAU22730

Changing the brake fluid Have a Yamaha dealer change thebrake fluid at the intervals specified inthe NOTE after the periodic mainte-nance and lubrication chart. In addition,have the oil seals of the master cylin-ders and calipers as well as the brakehoses replaced at the intervals listedbelow or whenever they are damagedor leaking.

� Oil seals: Replace every twoyears.

� Brake hoses: Replace every fouryears.

EAU22760

Drive chain slack The drive chain slack should bechecked before each ride and adjustedif necessary.

EAU41410

To check the drive chain slack1. Install the removable sidestand

and place the motorcycle on it.

NOTE:When checking and adjusting the drivechain slack, there should be no weighton the motorcycle.

2. Shift the transmission into the neu-tral position.

3. Move the rear wheel by pushingthe motorcycle to locate the tight-est portion of the drive chain, andthen measure the drive chain slackas shown.

4. If the drive chain slack is incorrect,adjust it as follows.

EAU41480

To adjust the drive chain slack1. Loosen the axle nut and the lock-

nut on each side of the swingarm.2. To tighten the drive chain, turn the

adjusting bolt on each side of theswingarm in direction (a). To loos-en the drive chain, turn the adjust-ing bolt on each side of theswingarm in direction (b), and thenpush the rear wheel forward.

Drive chain slack:35.0–45.0 mm (1.38–1.77 in)

1. Drive chain slack



6-22

6

NOTE:Using the alignment marks on eachchain puller, make sure that both chainpullers are in the same position forproper wheel alignment.

CAUTION:ECA10570

Improper drive chain slack will over-load the engine as well as other vitalparts of the motorcycle and can leadto chain slippage or breakage. Toprevent this from occurring, keepthe drive chain slack within thespecified limits.

3. Tighten both locknuts and the axlenut to the specified torques.

EAU23013

Cleaning and lubricating the drive chain The drive chain must be cleaned andlubricated at the intervals specified inthe periodic maintenance and lubrica-tion chart, otherwise it will quickly wearout, especially when riding in dusty orwet areas. Service the drive chain asfollows.

CAUTION:ECA10581

The drive chain must be lubricatedafter washing the motorcycle andriding in the rain.

1. Remove all dirt and mud from thedrive chain with a brush or cloth.

NOTE:For a thorough cleaning, have aYamaha dealer remove the drive chainand soak it in solvent.

2. Spray Yamaha Chain and CableLube or a high-quality spray-typedrive chain lubricant on both sidesand on the middle of the chain,

1. Axle nut2. Locknut3. Drive chain slack adjusting bolt4. Alignment marks

Tightening torques:Locknut:

16 Nm (1.6 m·kgf, 11 ft·lbf)Axle nut:

90 Nm (9.0 m·kgf, 65 ft·lbf)



6-23

6

making sure that all side platesand rollers have been sufficientlyoiled.

EAU41840

Checking and lubricating the cables The operation of all control cables andthe condition of the cables should bechecked before each ride, and the ca-bles and cable ends should be lubricat-ed if necessary. If a cable is damagedor does not move smoothly, have aYamaha dealer check or replace it.

WARNINGEWA10710

Damage to the outer housing of ca-bles may result in internal rustingand cause interference with cablemovement. Replace damaged ca-bles as soon as possible to preventunsafe conditions.

EAU23111

Checking and lubricating the throttle grip and cable The operation of the throttle grip shouldbe checked before each ride. In addi-tion, the cable should be lubricated atthe intervals specified in the periodicmaintenance chart.

Recommended lubricant:Yamaha Chain and Cable Lube or engine oil SAE 10W-30 (API SE)



6-24

6

EAU44400

Checking and lubricating the brake and shift pedals

The operation of the brake and shiftpedals should be checked before eachride, and the pedal pivots should be lu-bricated if necessary.

EAU23141

Checking and lubricating the brake and clutch levers

Brake lever

Clutch lever

The operation of the brake and clutchlevers should be checked before eachride, and the lever pivots should be lu-bricated if necessary.

Recommended lubricants:Brake pedal:

Silicone grease

Recommended lubricants:Brake lever:

Silicone greaseClutch lever:

Lithium-soap-based grease (all-purpose grease)



6-25

6

EAUM1650

Lubricating the swingarm piv-ots

The swingarm pivots must be lubricat-ed at the intervals specified in the peri-odic maintenance and lubrication chart.

EAU23250

Lubricating the rear suspen-sion

The pivoting points of the rear suspen-sion must be lubricated at the intervalsspecified in the periodic maintenanceand lubrication chart.

EAU23271

Checking the front fork The condition and operation of the frontfork must be checked as follows at theintervals specified in the periodic main-tenance and lubrication chart.

To check the condition

WARNINGEWA10750

Securely support the vehicle so thatthere is no danger of it falling over.

Check the inner tubes for scratches,damage and excessive oil leakage.

To check the operation1. Place the vehicle on a level sur-

face and hold it in an upright posi-tion.

2. While applying the front brake,push down hard on the handlebarsseveral times to check if the frontfork compresses and reboundssmoothly.

Recommended lubricant:Lithium-soap-based grease Recommended lubricant:

Lithium-soap-based grease



6-26

6

CAUTION:ECA10590

If any damage is found or the frontfork does not operate smoothly,have a Yamaha dealer check or re-pair it.

EAU23280

Checking the steering Worn or loose steering bearings maycause danger. Therefore, the operationof the steering must be checked as fol-lows at the intervals specified in the pe-riodic maintenance and lubricationchart.

1. Place a stand under the engine toraise the front wheel off theground.

WARNINGEWA10750

Securely support the vehicle so thatthere is no danger of it falling over.

2. Hold the lower ends of the frontfork legs and try to move them for-ward and backward. If any freeplay can be felt, have a Yamahadealer check or repair the steering.



6-27

6

EAU23290

Checking the wheel bearings The front and rear wheel bearings mustbe checked at the intervals specified inthe periodic maintenance and lubrica-tion chart. If there is play in the wheelhub or if the wheel does not turnsmoothly, have a Yamaha dealer checkthe wheel bearings.

EAU24350

Supporting the motorcycle Since this model is not equipped with acenterstand, follow these precautionswhen removing the front and rearwheel or performing other maintenancerequiring the motorcycle to stand up-right. Check that the motorcycle is in astable and level position before startingany maintenance. A strong woodenbox can be placed under the engine foradded stability.

To service the front wheel1. Stabilize the rear of the motorcycle

by using a motorcycle stand or, ifan additional motorcycle stand isnot available, by placing a jack un-der the frame in front of the rearwheel.

2. Raise the front wheel off theground by using a motorcyclestand.

To service the rear wheelRaise the rear wheel off the ground byusing a motorcycle stand or, if a motor-cycle stand is not available, by placing

a jack either under each side of theframe in front of the rear wheel or undereach side of the swingarm.



6-28

6

EAU24360

Front wheel

EAU41340

To remove the front wheel

WARNINGEWA10820

� It is advisable to have a Yamahadealer service the wheel.

� Securely support the motor-cycle so that there is no dangerof it falling over.

1. Loosen the axle nut.

2. Lift the front wheel off the groundaccording to the procedure onpage 6-27.

3. Remove the axle nut and washer.

4. Pull the wheel axle out, and thenremove the wheel.

EAU41420

To install the front wheel1. Lift the wheel up between the fork

legs.2. Insert the wheel axle from the right

side.3. Lower the front wheel so that it is

on the ground.4. Install the washer and axle nut,

and then tighten the axle nut to thespecified torque.

EAU25080

Rear wheel

EAU41311

To remove the rear wheel

WARNINGEWA10820

� It is advisable to have a Yamahadealer service the wheel.

� Securely support the motor-cycle so that there is no dangerof it falling over.

1. Loosen the axle nut.2. Lift the rear wheel off the ground

according to the procedure onpage 6-27.

3. Loosen the locknut and drive chainadjusting bolt on each side of theswingarm.

4. Remove the axle nut and washer.

1. Washer2. Axle nut

1. Wheel axle

Tightening torque:Axle nut:

70 Nm (7.0 m·kgf, 50 ft·lbf)



6-29

65. Push the wheel forward, and then

remove the drive chain from therear sprocket.

NOTE:� If the drive chain is difficult to re-

move, remove the wheel axle first,and then lift the wheel upwardenough to remove the drive chainfrom the rear sprocket.

� The drive chain does not need tobe disassembled in order to re-move and install the rear wheel.

6. While supporting the brake caliperand slightly lifting the wheel, pullthe wheel axle out.

NOTE:A rubber mallet may be useful to tap thewheel axle out.

7. Remove the wheel.

CAUTION:ECA11070

Do not apply the brake after thewheel has been removed togetherwith the brake disc, otherwise thebrake pads will be forced shut.

EAU41322

To install the rear wheel1. Install the wheel and the brake cal-

iper bracket by inserting the wheelaxle from the right-hand side.

NOTE:� Make sure that the slot in the brake

caliper bracket is fit over the retain-er on the swingarm.

� Make sure that there is enoughspace between the brake pads be-fore installing the wheel.

2. Install the drive chain onto the rearsprocket.

1. Axle nut2. Washer3. Locknut4. Drive chain slack adjusting bolt 1. Wheel axle

1. Retainer2. Slot



6-30

6

3. Install the washer and axle nut,and then lower the rear wheel sothat it is on the ground.

4. Adjust the drive chain slack. (Seepage 6-21.)

5. Tighten the axle nut to the speci-fied torque.

EAU25870

Troubleshooting Although Yamaha motorcycles receivea thorough inspection before shipmentfrom the factory, trouble may occur dur-ing operation. Any problem in the fuel,compression, or ignition systems, forexample, can cause poor starting andloss of power.The following troubleshooting chartsrepresent quick and easy proceduresfor checking these vital systems your-self. However, should your motorcyclerequire any repair, take it to a Yamahadealer, whose skilled technicians havethe necessary tools, experience, andknow-how to service the motorcycleproperly.Use only genuine Yamaha replace-ment parts. Imitation parts may look likeYamaha parts, but they are often inferi-or, have a shorter service life and canlead to expensive repair bills.

Tightening torque:Axle nut:

90 Nm (9.0 m·kgf, 65 ft·lbf)



6-31

6

EAU41491

Troubleshooting charts

Starting problems or poor engine performance

WARNINGEWA10840

Keep away open flames and do not smoke while checking or working on the fuel system.

Check the fuel level inthe fuel tank.

1. FuelThere is enough fuel.

There is no fuel.

Supply fuel.

Operate the kickstarter.

2. CompressionThere is compression.

There is no compression.

Check the ignition.

Have a Yamaha dealercheck the vehicle.

Remove the spark plugand check the electrodes.

3. IgnitionWet

Dry

Wipe off with a dry cloth and correct thespark plug gap, or replace the spark plug.

Have a Yamaha dealer check the vehicle.The engine does not start.Have a Yamaha dealer check the vehicle.

Open the throttle halfway and operatethe kickstarter.

Check the compression.

The engine does not start. Check the compression.



6-32

6

Engine overheating

WARNINGEWAT1040

� Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may beblown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.

� Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the de-tent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the capwhile turning it counterclockwise, and then remove the cap.

NOTE:If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolantas soon as possible.

Wait until the engine has cooled.

Check the coolant level in the radiator.

The coolant level is OK.

The coolant level is low.Check the cooling systemfor leakage.

Have a Yamaha dealer checkand repair the cooling system.

Add coolant. (See NOTE.)

Start the engine. If the engine overheats again, have a Yamaha dealer check and repair the cooling system.

There isleakage.

There is no leakage.


MOTORCYCLE CARE AND STORAGE

7-1

7

EAU37833

Matte color caution

CAUTION:ECA15192

Some models are equipped withmatte colored finished parts. Besure to consult a Yamaha dealer foradvice on what products to use be-fore cleaning the vehicle. Using abrush, harsh chemical products orcleaning compounds when cleaningthese parts will scratch or damagetheir surface. Wax also should notbe applied to any matte colored fin-ished parts.

EAU41352

Care While the open design of a motorcyclereveals the attractiveness of the tech-nology, it also makes it more vulnera-ble. Rust and corrosion can developeven if high-quality components areused. A rusty exhaust pipe may go un-noticed on a car, however, it detractsfrom the overall appearance of a motor-cycle. Frequent and proper care doesnot only comply with the terms of thewarranty, but it will also keep yourmotorcycle looking good, extend its lifeand optimize its performance.

Before cleaning1. Cover the muffler outlet with a

plastic bag after the engine hascooled down.

2. Make sure that all caps and coversas well as all electrical couplersand connectors, including thespark plug cap, are tightly in-stalled.

3. Remove extremely stubborn dirt,like oil burnt onto the crankcase,with a degreasing agent and abrush, but never apply such prod-

ucts onto seals, gaskets, sprock-ets, the drive chain and wheelaxles. Always rinse the dirt and de-greaser off with water.

Cleaning

CAUTION:ECA10771

� Avoid using strong acidic wheelcleaners, especially on spokedwheels. If such products areused on hard-to-remove dirt, donot leave the cleaner on the af-fected area any longer than in-structed. Also, thoroughly rinsethe area off with water, immedi-ately dry it, and then apply a cor-rosion protection spray.

� Improper cleaning can damageplastic parts such as cowlings,panels, windshields, headlightlenses, meter lenses, etc. Useonly a soft, clean cloth orsponge with mild detergent andwater to clean plastic.

� Do not use any harsh chemicalproducts on plastic parts. Besure to avoid using cloths orsponges which have been in



7-2

7

contact with strong or abrasivecleaning products, solvent orthinner, fuel (gasoline), rust re-movers or inhibitors, brake flu-id, antifreeze or electrolyte.

� Do not use high-pressure wash-ers or steam-jet cleaners sincethey cause water seepage anddeterioration in the following ar-eas: seals (of wheel and swing-arm bearings, fork and brakes),electric components (couplers,connectors, instruments,switches and lights), breatherhoses and vents.

� For motorcycles equipped witha windshield: Do not use strongcleaners or hard sponges asthey will cause dulling orscratching. Some cleaning com-pounds for plastic may leavescratches on the windshield.Test the product on a small hid-den part of the windshield tomake sure that it does not leaveany marks. If the windshield is

scratched, use a quality plasticpolishing compound afterwashing.

After normal useRemove dirt with warm water, a milddetergent, and a soft, clean sponge,and then rinse thoroughly with cleanwater. Use a toothbrush or bottlebrushfor hard-to-reach areas. Stubborn dirtand insects will come off more easily ifthe area is covered with a wet cloth fora few minutes before cleaning.After riding in the rain or near the seaSince sea salt is extremely corrosive,carry out the following steps after eachride in the rain or near the sea.

1. Clean the motorcycle with cold wa-ter and a mild detergent, after theengine has cooled down.

CAUTION:ECA10790

Do not use warm water since it in-creases the corrosive action of thesalt.

2. Apply a corrosion protection sprayon all metal, including chrome- andnickel-plated, surfaces to preventcorrosion.

After cleaning1. Dry the motorcycle with a chamois

or an absorbing cloth.2. Immediately dry the drive chain

and lubricate it to prevent it fromrusting.

3. Use a chrome polish to shinechrome, aluminum and stainless-steel parts, including the exhaustsystem. (Even the thermally in-duced discoloring of stainless-steel exhaust systems can be re-moved through polishing.)

4. To prevent corrosion, it is recom-mended to apply a corrosion pro-tection spray on all metal,including chrome- and nickel-plat-ed, surfaces.

5. Use spray oil as a universal clean-er to remove any remaining dirt.

6. Touch up minor paint damagecaused by stones, etc.

7. Wax all painted surfaces.8. Let the motorcycle dry completely

before storing or covering it.

WARNINGEWA11130

� Make sure that there is no oil orwax on the brakes or tires.



7-3

7

� If necessary, clean the brakediscs and brake linings with aregular brake disc cleaner or ac-etone, and wash the tires withwarm water and a mild deter-gent. Before riding at higherspeeds, test the motorcycle’sbraking performance and cor-nering behavior.

CAUTION:ECA10800

� Apply spray oil and wax spar-ingly and make sure to wipe offany excess.

� Never apply oil or wax to anyrubber and plastic parts, buttreat them with a suitable careproduct.

� Avoid using abrasive polishingcompounds as they will wearaway the paint.

NOTE:Consult a Yamaha dealer for advice onwhat products to use.

EAU41511

Storage

Short-termAlways store your motorcycle in a cool,dry place and, if necessary, protect itagainst dust with a porous cover.

CAUTION:ECA10810

� Storing the motorcycle in apoorly ventilated room or cover-ing it with a tarp, while it is stillwet, will allow water and humid-ity to seep in and cause rust.

� To prevent corrosion, avoiddamp cellars, stables (becauseof the presence of ammonia)and areas where strong chemi-cals are stored.

Long-termBefore storing your motorcycle for sev-eral months:

1. Follow all the instructions in the“Care” section of this chapter.

2. For motorcycles equipped with afuel cock that has an “OFF” posi-tion: Turn the fuel cock lever to“OFF”.

3. Drain the fuel tank and fuel lines,and the carburetor float chamberby loosening the drain bolt; this willprevent fuel deposits from buildingup.

4. Perform the following steps to pro-tect the cylinder, piston rings, etc.from corrosion.a. Remove the spark plug cap

and spark plug.b. Pour a teaspoonful of engine oil

into the spark plug bore.c. Install the spark plug cap onto

the spark plug, and then placethe spark plug on the cylinderhead so that the electrodes aregrounded. (This will limit spark-ing during the next step.)

d. Turn the engine over severaltimes with the starter. (This willcoat the cylinder wall with oil.)

e. Remove the spark plug capfrom the spark plug, and theninstall the spark plug and thespark plug cap.



7-4

7

WARNINGEWA10950

To prevent damage or injury fromsparking, make sure to ground thespark plug electrodes while turningthe engine over.

5. Lubricate all control cables and thepivoting points of all levers andpedals.

6. Check and, if necessary, correctthe tire air pressure, and then liftthe motorcycle so that both of itswheels are off the ground. Alterna-tively, turn the wheels a little everymonth in order to prevent the tiresfrom becoming degraded in onespot.

7. Cover the muffler outlet with aplastic bag to prevent moisturefrom entering it.

NOTE:Make any necessary repairs beforestoring the motorcycle.


SPECIFICATIONS

8-1

8

Dimensions:Overall length:

1821 mm (71.7 in)Overall width:

758 mm (29.8 in)Overall height:

1161 mm (45.7 in)Seat height:

864 mm (34.0 in)Wheelbase:

1258 mm (49.5 in)Ground clearance:

351 mm (13.82 in)Weight:

With oil and fuel:71.0 kg (157 lb)

Engine:Engine type:

Liquid cooled 2-strokeCylinder arrangement:

Forward-inclined single cylinderDisplacement:

84.7 cm³Bore × stroke:

47.5 × 47.8 mm (1.87 × 1.88 in)Compression ratio:

8.20 :1Starting system:

KickstarterLubrication system:

PremixEngine oil:

Type:YAMALUBE 2-R

Transmission oil:Type:

YAMALUBE 4 (10W30) or SAE 10W30Oil change quantity:

0.50 L (0.53 US qt) (0.44 Imp.qt)Cooling system:

Radiator capacity (including all routes):0.54 L (0.57 US qt) (0.48 Imp.qt)

Air filter:Air filter element:

Wet elementFuel:

Recommended fuel:Premium unleaded gasoline only

Fuel tank capacity:5.0 L (1.32 US gal) (1.10 Imp.gal)

Carburetor:Manufacturer:

KEIHINType × quantity:

PWK28 x 1Spark plug (s):

Manufacturer/model:NGK/BR10EG

Spark plug gap:0.5–0.6 mm (0.020–0.024 in)

Clutch:Clutch type:

Wet, multiple-discTransmission:

Primary reduction system:Spur gear

Primary reduction ratio:65/18 (3.611)

Secondary reduction system:Chain drive

Secondary reduction ratio:47/14 (3.357)

Transmission type:Constant mesh 6-speed

Operation:Left foot operation

Gear ratio:1st:

27/11 (2.454)2nd:

32/17 (1.882)3rd:

26/17 (1.529)4th:

22/17 (1.294)5th:

26/23 (1.130)6th:

25/25 (1.000)Chassis:

Frame type:Semi double cradle

Caster angle:26.30 °

Trail:88.0 mm (3.46 in)

Front tire:Type:

With tubeSize:

70/100-17 40M


SPECIFICATIONS

8-2

8

Manufacturer/model:DUNLOP/D739FA

Rear tire:Type:

With tubeSize:

90/100-14 49MManufacturer/model:

DUNLOP/D756Tire air pressure (measured on cold tires):

Front:100 kPa (15 psi) (1.00 kgf/cm²)

Rear:100 kPa (15 psi) (1.00 kgf/cm²)

Front wheel:Wheel type:

Spoke wheelRim size:

17x1.40Rear wheel:

Wheel type:Spoke wheel

Rim size:14x1.60

Front brake:Type:

Single disc brakeOperation:

Right hand operationRecommended fluid:

DOT 4

Rear brake:Type:

Single disc brakeOperation:

Right foot operationRecommended fluid:

DOT 4Front suspension:

Type:Telescopic fork

Spring/shock absorber type:Coil spring/oil damper

Wheel travel:275.0 mm (10.83 in)

Rear suspension:Type:

Swingarm (link suspension)Spring/shock absorber type:

Coil spring/gas-oil damperWheel travel:

282.0 mm (11.10 in)Electrical system:

Ignition system:CDI


CONSUMER INFORMATION

9-1

9

EAU40790

Identification numbers Record the vehicle identification num-ber and model label information in thespaces provided below for assistancewhen ordering spare parts from aYamaha dealer or for reference in casethe vehicle is stolen.VEHICLE IDENTIFICATION NUMBER:

MODEL LABEL INFORMATION:

EAU26400

Vehicle identification number

The vehicle identification number isstamped into the steering head pipe.Record this number in the space pro-vided.

NOTE:The vehicle identification number isused to identify your motorcycle andmay be used to register your motor-cycle with the licensing authority in yourarea.

EAU26460

Model label

The model label is affixed to the loca-tion shown. Record the information onthis label in the space provided. This in-formation will be needed when orderingspare parts from a Yamaha dealer.

1. Vehicle identification number 1. Model label



9-2

9

EAU42120

YAMAHA MOTOR CORPORATION, U.S.A. YZ/WR MOTORCYCLE LIMITED WARRANTY



9-3

9


INDEXA

Accessories and replacement parts ..... 6-17Air filter element, cleaning .................... 6-12

BBrake and clutch levers,

checking and lubricating..................... 6-24Brake and shift pedals,

checking and lubricating..................... 6-24Brake fluid, changing ............................ 6-21Brake fluid level, checking .................... 6-20Brake lever ............................................. 3-2Brake pedal ............................................ 3-2

CCables, checking and lubricating.......... 6-23Carburetor, adjusting ............................ 6-14Care........................................................ 7-1Clutch lever............................................. 3-1Clutch lever free play, adjusting ........... 6-18Coolant ................................................. 6-10

DDrive chain, cleaning and lubricating.... 6-22Drive chain slack .................................. 6-21

EEngine break-in ...................................... 5-3Engine idling speed .............................. 6-14Engine, starting a warm.......................... 5-1Engine stop button.................................. 3-1

FFront and rear brake pads, checking.... 6-19Front brake lever free play, checking ... 6-18Front fork, adjusting................................ 3-7Front fork, bleeding................................. 3-8Front fork, checking .............................. 6-25Fuel......................................................... 3-3

Fuel cock.................................................3-5Fuel tank breather hose ..........................3-5Fuel tank cap...........................................3-3

HHandlebar switch.....................................3-1

IIdentification numbers .............................9-1

KKickstarter ...............................................3-6

LLabels, location of ...................................1-4

MMatte color, caution.................................7-1Model label..............................................9-1

PParking ....................................................5-4Part locations ..........................................2-1Periodic maintenance and

lubrication chart.....................................6-2Pre-operation check list...........................4-2

RRear suspension, lubricating.................6-25

SSafety information ...................................1-1Seat.........................................................3-6Shifting ....................................................5-2Shift pedal ...............................................3-1Shock absorber assembly, adjusting ......3-9Sidestand ..............................................3-11Spark plug, checking...............................6-8Specifications ..........................................8-1Starter (choke) knob................................3-6Starting and warming up a cold engine...5-1Steering, checking.................................6-26

Storage ................................................... 7-3Supporting the motorcycle .................... 6-27Swingarm pivots, lubricating ................. 6-25

TThrottle cable free play, adjusting......... 6-15Throttle grip and cable,

checking and lubricating ..................... 6-23Tires...................................................... 6-15Transmission oil ...................................... 6-9Troubleshooting .................................... 6-30Troubleshooting charts ......................... 6-31

VVehicle identification number.................. 9-1

WWarranty, limited..................................... 9-2Wheel bearings, checking..................... 6-27Wheel (front) ......................................... 6-28Wheel (rear).......................................... 6-28Wheels.................................................. 6-17


A5-yoko_Blank.fm Page 1 Tuesday, April 8, 2003 11:43 AM

A5-yoko_Blank.fm Page 1 Tuesday, April 8, 2003 11:43 AM

PRINTED IN JAPAN2007.04-0.9×1 CR

(E)

PRINTED ON RECYCLED PAPER YAMAHA MOTOR CO., LTD.

Documents

YZ85 YZ85X OWNER'S MANUAL - yamahamotorsports.com · MOTORCYCLIST” booklets supplied with this motorcycle when new or available from your Yamaha dealer. Children differ Children