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ASSEMBLYMANUAL

and TUNINGGUIDE

Features of Your XTM Racing X-Terminator Pro:● Factory-Assembled Chassis and Drive Train● 3 Millimeter 7075 Aluminum Milled Chassis● CVA-Type Front & Rear Drive Axles● Threaded Shock Bodies● Dual-Chamber Aluminum Racing Tuned Pipe● Exhaust Header w/Coupler & Spring Retainer● Performance 3-Shoe Clutch Assembly● Aluminum Heat-Sink Engine Mounts● 7075 Aluminum Shock Towers & Chassis Support Braces● Carbon-Fiber Radio Tray● Complete Ball-Bearing Set - Including Steering

● Fuel Line w/Fuel Filter● Clear Body w/Rear Spoiler, Body Clips & Decal Sheet● Rear Sway Bar● Dual Vented Disc Brakes● 0º - 3º Rear Suspension Mounts● Dish Wheels● Shock Dust Boots● Dustproof Receiver and Battery Boxes● Silicone Dustproof Switch Cover● Dual-Sponge Air Filter w/Prefilter Sleeve● Transponder Mount

Thank you for purchasing the XTM Racing X-Terminator Pro. This Assembly Manual is provided to help you enjoy your new X-Terminator Prowithout any of the hassles you might expect. Please read through all of the literature that is provided in the box.

✦✦✦✦✦IMPORTANT✦✦✦✦✦ Before operating your new X-Terminator Pro, please read and understand the warnings listed on the next page. Failure to do socould lead to bodily harm and/or injury. The XTM Racing X-Terminator Pro is not intended for persons under 12 years of age, unless closelysupervised by an adult.

The XTM Racing X-Terminator Pro is distributed exclusively by Global Hobby Distributors18480 Bandilier Circle, Fountain Valley, CA 92708

All contents copyright © 2004, Global Hobby Distributors Version V1.0 January 2004

Kit Product # 145603

HTTP://XTM.GLOBALHOBBY.COM

2 Visit our website at http://xtm.globalhobby.com or for Customer Service at http://globalservices.globalhobby.com

ENGINE WARNINGS

● Never use any fuel in your engine other than glow fuelsspecifically designed for use in model car engines. Use of anyother types of fuel can cause severe damage to your engine and/orpersonal injury. NEVER USE GASOLINE!

● Never operate your model on any public streets. This couldcause traffic accidents, personal injury or property damage.

● Glow fuel engines emit exhaust vapors that are poisonous andcan be dangerous to your health. It is important that you operateyour engine in a very well-ventilated area, preferably outdoors.

● Before starting your engine, make sure that the throttle trim isset to the idle position. Starting your engine at any setting aboveidle can cause the model to lurch out of your hands.

● When your engine is running, there are certain parts thatrotate at high speeds. Be careful not to touch the drive shafts,gears, clutch assembly or any other moving parts. Otherwise,serious injury could result.

● It is normal for your engine, exhaust header and tuned pipe toget very hot during operation. Never touch these parts whilethey are hot or you might be burned.

● Model car engines produce vibration when they are running. Itis important to periodically check the engine mounting screwsand other assemblies to ensure they are tight. Running yourengine with the engine mounting screws loose can lead tosevere engine and/or chassis damage.

FUEL WARNINGS

● Glow fuels like those used in your X-Terminator Pro arepoisonous. Follow all the precautions that are printed on the fuelmanufacturer's container.

● Keep fuel out of the reach of children.

● Glow fuel is extremely flammable. Keep away from high heat,sparks and flame.

GENERAL WARNINGS

● Under no circumstances should you operate your model incrowds of people. Serious injury could result.

● Never operate your model on busy streets or if there are carsaround.

● Do not use your model to chase pets or other animals.

● The receiver and battery boxes are not waterproof; therefore,do not drive through water, wet grass, mud or snow.

● Because your model is operated by radio control, it is importantto make sure you always are using fresh and/or fully chargedbatteries. Never allow the batteries to run low or you could losecontrol of the model.

● If your model becomes stuck, allow the engine to idle, thenretrieve your model by hand.

● To prevent excessive r.p.m.'s from damaging your engine and/ordrive-train components, we suggest reducing throttle while in theair during jumps.

FOR YOUR SAFETY - PLEASE READ THESE WARNINGS FIRST!

If you should have any trouble with any of the steps listed in this Assembly Manual and Tuning Guide, we have provided an extensivetroubleshooting guide beginning on page # 16. The troubleshooting guide is provided to help you find a quick and immediate resolutionto a number of problems that might occur. If you cannot solve a problem using the troubleshooting guide, or if you have any otherquestions or concerns, please contact us at the address below:

FOR YOUR INFORMATION

Visit Our Websitehttp://globalservices.globalhobby.com

Global Services18480 Bandilier CircleFountain Valley CA 92708

Phone: (714) 963-0329 Fax: (714) 964-6236 Email: [email protected]

To allow us to serve your needs better, please include your email address with any correspondence you send to us. Your email address will be added to our CustomerService Database so you will automatically receive free updates and tech notices for your particular product. You will also receive repair status updates (if applicable) andother important information about your product as it becomes available.

IMPORTANT INFORMATION ABOUT YOUR EMAIL ADDRESSGlobal Hobby Distributors will not disclose the information it collects to outside parties. Global Hobby Distributors does not sell, trade, or rent

your personal information to others . Your privacy is important to us.

CHECK IT OUT! We urge you to come check out our website at http://globalservices.globalhobby.com. There you will find public message boardsfrequented by other XTM Racing product owners and the XTM Racing support staff. This is a great place to learn about new XTM Racing products,get help and suggestions for your current XTM Racing products or just simply hang out and chat with people that share your same interests.


INTRODUCTION

Thank you for purchasing the XTM Racing X-Terminator Pro 1/8th scale Nitro Buggy. The XTM Racing X-Terminator Pro is one of thebest, most affordable 1/8th scale nitro buggies available today. This Pro version of the great X-Terminator RTR Nitro Buggy is an 80%factory-assembled chassis complete with many options that are normally only available as upgrade items: 7075 aluminum shocktowers, 7075 aluminum chassis braces, aluminum shocks with threaded shock bodies, dual vented disc brakes, carbon-fiber radio tray,3-shoe clutch and much more. It doesn't get any better than that. XTM Racing gives you everything serious racers want and none of thethings they don't. We've included everything we could for you to customize your X-Terminator Pro to your favorite track's conditionsand we've done all the tedious work for you. We've left the stylish racing body clear, too, so that you can paint it in your own favoritecolors. And, of course, we've included a great set of die-cut XTM Racing decals to liven up your color scheme.

If you're a racer, you'll want to use your own favorite radio control system and your own favorite .21 size rear-exhaust racing engine,according to your racing program's rules. We leave choosing tires up to you, too, since track conditions and personal preference differso much. You'll be able to use the tires you want the first time. So, forget about the rest, you have the best. Go from the box tothe Winner's Circle in only hours, with the X-Terminator Pro from XTM Racing.

Before beginning assembly, carefully remove the main chassis and the separate parts bags from the box. Use the parts list below toverify that your kit contains all of the correct parts bags. If your kit is missing a parts bag, or even just a singe part, please contact usimmediately, using the contact information listed on the bottom of page # 2.

SECTION 1: PARTS IDENTIFICATION

1 - Assembled Chassis with Wheels

1 - Tuned Pipe Bag

1 - Exhaust Header Bag

1 - Engine Air Filter Bag

1 - Air Filter Prefilter Bag

1 - Clutch Assembly Bag

1 - Throttle & Brake Linkage Bag

1 - Switch Dust Cover Bag

1 - Engine Mount Bag

1 - Fuel Line & Filter Bag

1 - Molded Toe-Angle Blocks Sprue

1 - Molded Miscellaneous Parts Sprue

1 - Antenna Tube

1 - Tools Bag

1 - Clear Polycarbonate Body w/Wing

1 - Decal Sheet

The different parts bags contain a number of small parts that are identified throughout this assembly manual. We don't suggestopening the parts bags until you actually need to take a part out of them. This will prevent you from loosing any of the small parts. Itwill also make it easier for you to identify the parts.


SECTION 2: RECOMMENDED TOOLS AND SUPPLIES NEEDED

This section lists the recommended items you need to purchase and have on-hand to finish assembling and to run and maintain yournew XTM Racing X-Terminator Pro.

.21 Size Rear Exhaust Enginew/SG-Style Crankshaft

Radio Control System with 1 50oz/in or More TorqueServo for Throttle and Brake, and 1 100oz/in

or More Torque Servo for Steering

1/8th Scale Tiresto Suit Your Track

XTM Racing 5 Cell 1000Mah NiCDReceiver Battery Pack (P/N 145801)

XTM Racing Mega-StickTire Glue (P/N 145900)

Trinity "Final Solution"After-Run Oil (P/N 843744)

XTM Racing Air FilterOil (P/N 149571)

Associated Thread-LockAdhesive (P/N 588996)

XTM Racing 1/8th Scale4-Way Wrench (P/N 146036)

XTM Racing Glow Starterw/Meter & Charger (P/N 146045)

XTM Racing Curved LexanScissors (P/N 145945)

XTM Racing BodyReamer (P/N 146085)

XTM Racing500cc Fueling Bottle

(P/N 145920)

● Fuel to Suit Your Engine

● Glow Plug to Suit Your Engine

● Paint and Materials for the Body

● Assorted Metric Hex Wrenches

● Needle Nose Pliers

● Adjustable Wrench

● Flat Head Screwdriver

● Phillips Head Screwdriver

● Wire Cutters

● Rubbing Alcohol

● Optional Differential Oil

● Optional Shock Oil

● Optional Shock Spring Sets

XTM Racing 1/8th ScaleStarter Box (P/N 146055)

12V Battery(P/N 110171)

12V Charger(P/N 110270)


SECTION 3: ASSEMBLING YOUR X-TERMINATOR PRO

Step 1: Installing the Clutch Assembly

● Install the flywheel, clutch shoes, clutch springs and clutch bell assembly onto your engine.

● Temporarily install the M3 cap screw and lock nuts onto your engine mounting lugs in preparation for installing the engine.

Before installing the clutch bell, lightly sand the insidesurface of the clutch bell, using 600 grit sandpaper ,then clean it thoroughly, using rubbing alcohol.Doing this will allow the clutch shoes to "bite" better,reducing clutch slipping.

For now, only partially thread the locknuts onto the cap screws.

Install the flywheel and theclutch nut before installing theclutch shoes and springs.Tighten the clutch nut firmly.

Place the clutch shoes, with the clutchsprings, over the three pins on the flywheel.Using a small screwdriver as a lever, bendthe short end of each clutch spring behindthe clutch nut and push the clutch shoesdown to snap them into place.

Take your time when installing the clutch shoes and springs. Thisis a high-performance clutch with very stiff springs. Patience isnecessary to get it installed properly. After installing the clutchbell, make sure it spins freely. It should not drag over the clutch shoes.

*Note the direction the clutch shoes are installed.

Make sure that the long portionof the clutch springs fit firmly inthe groove in the clutch shoes.

Step 2: Installing the Engine Mounts & Exhaust Header

● Temporarily slide the two aluminum engine mounts over the M3 lock nuts.

● Install the exhaust header onto your engine, using the exhaust hanger spring and retainer bracket to hold it in place.

The retainer spring connectsto the retainer bracket andwraps around the engine tohold the exhaust headerfirmly in place.

The exhaust header fits most .21 size round-port,rear exhaust engines. If you're using a side exhaustengine, after-market headers are available.

The flat sides of the hex nuts must line up with thechannel in the engine mounts, so that the enginemounts can be slid into position. Do not tighten thecap screws yet.


Step 3: Installing Your Engine Assembly

● Install your engine to the chassis, taking care to ensure that the engine is lined up properly and that the gear mesh between the clutchbell and the spur gear is correct. It's important that the gears do not bind.

To set the gear mesh, place a piece of notebookpaper between the clutch bell and the spur gear.When set properly, there should be very slightplay between the gears. If the gears are too tightthey will bind and if they are too loose they willstrip out. When satisfied with the alignment,tighten the M5 cap screws securely.

Set your engine assembly onto thechassis and temporarily hold it in place,using the four M5 cap screws. Don'ttighten the cap screws yet, though.

With the engine mount assembly temporarilyin place, slide the engine back within themounts until the teeth on the clutch bell areeven with the spur gear. When satisfied withthe alignment, tighten the M3 cap screws tosecure the engine to the engine mounts.

With the wheels off the ground, you should be able tospin the clutch bell with your finger. The clutch bellshould rotate the spur gear and other drive-traincomponents rather easily. If it's difficult to rotate theclutch bell, your gear mesh is likely too tight. Readjustthe gear mesh, making sure to use a piece ofnotebook paper between the gears. When setproperly, the paper should be tightly crinkled, but notripped or punctured.

Step 4: Installing Your Servos and Switch

● Install your throttle and steering servos and your switch harness into the carbon fiber radio deck. When you install your switch, makesure to slide the silicone dust cover over the switch before installing it.

To make it easier to install your servosand switch, we suggest removing theradio deck from the chassis.

Install your switch, using themounting screws provided withyour switch. Don't forget to slidethe silicone dust boot over yourswitch before installing it.

Use Lock-Tite on the machinescrews when reinstalling theradio deck.


Step 5: Installing Your Receiver and Battery

● Install your battery into the battery box, then install your receiver into the receiver box.

The receiver and battery box covers have been preinstalled. You'llneed to remove them first before installing your receiver and battery.When reinstalling the covers, be careful not to pinch the wires.

Slide the antenna intoone end of the plasticantenna tube and out theother end, then push theend of the antenna tubeinto the molded hole inthe top of the receiverbox cover.

When reinstalling the covers,make sure that they snap firmlyinto place.

Step 6: Installing the Steering Assembly

● Install the servo arm onto your servo, making sure that it's centered, as shown in the photo. You'll need to first connect your radiocontrol system and turn it on to center the servo. Make sure that the steering trim lever on your transmitter is centered, too.

Three different servo arm adapters are included.They are labeled for use with Hitec, Futaba andSanwa. Make sure that you use the correctservo arm adapter for the particular brand ofservo you're using.

If necessary, you may need to cut offthe unused steering arm, using a pairof wire cutters.

Secure the servo arm to your servo, using the retaining screwprovided with your servo.

Step 7: Assembling the Throttle and Brake Linkage

● Assemble the throttle and brake linkage, paying careful attention to how the linkage wires are orientated and to the dimensions shown.

● The linkage assembly is designed to be used with engines that feature a slide carburetor. If your engine features a rotary carburetor,you will need to modify the linkage accordingly.

Cut one arm from your servohorn, as shown.

A servo horn is not included. Youmust use the servo horn includedwith your radio control system.

When fully assembled, thethrottle and brake linkageshould look like the one below.


Step 8: Installing and Adjusting the Throttle and Brake Linkage

● Install the two linkage wires onto your engine's throttle arm and through the brake levers, then install the servo arm onto the servo,making sure that it's centered, as shown. You'll need to first connect your radio control system and turn it on to center the servo. Makesure that the throttle trim lever on your transmitter is centered, too.

● We suggest waiting to make the final adjustments to the throttle and brake linkages until after you have completed assembly of thebuggy. The dimensions given below are rough starting points.

With the transmitter and receiver turned on, and the throttle and braketrim lever centered, the spur gear should turn easily (i.e., the brakes shouldbe disengaged). If the brakes are dragging when the throttle trigger is atneutral, the brake discs will wear out very quickly. To ensure that the brakesare disengaged, always make sure that there is a small gap between thelinkage collars and the brake levers when the brake levers are in theirneutral position.

The X-Terminator Pro features a dual-disc brake design that allows eachbrake disc to be set independently from the other. This means that you cannow have differential braking. Depending on your track conditions anddriving techniques, you might want the front brakes to engage before therear brakes or vice-versa.

Secure the servo arm to your servo,using the retaining screw providedwith your servo.

Step 9: Air Filter Assembly and Installation

● Assemble the air filter, making sure to wet the filter element, using air filter oil, so that small dust and debris cannot enter your enginewhen it's running.

● Install the air filter onto your engine, using a cable tie to secure it to the carburetor, then cut and install the prefilter element.

It's very important to oilthe white filter element totrap small dust and debris.

Slide the gray prefilter sleeveover the filter assembly, asshown. This is the prefilter. Donot oil it like you did the whitefilter.


Step 10: Tuned Pipe and Fuel Line Installation

● Install the tuned pipe onto the header, using the silicone coupler and cable ties, then secure the tubed pipe to the tuned pipe mount.

● Install the fuel lines to the carburetor, pressure nipple and fuel tank. Use the preinstalled clip to hold the fuel filter in place.

Tighten the grub screw firmly to securethe tuned pipe to the tuned pipemount. If the grub screw is not in theparts bag, it is likely already threadedinto the end of the tuned pipe.

Double-check that the lock nut andscrew that secure the tuned pipemount to the chassis are tight.

The plain piece of fuel line should be connected from the pressurenipple on the tuned pipe to the nipple on the fuel tank lid. One endof the fuel line with the fuel filter attached should be connected tothe fuel nipple on the carburetor and the other end should beconnected to the nipple on the back of the fuel tank.

● Carefully install the foam inserts that came with your tires into your front and rear tires, making sure that they lay flat within the tires.It's important that they don't kink or cause the tires to bulge.

● Carefully install your tires onto the wheels. You must glue the tires to the wheels, as shown below. Do not drive the X-Terminator Prowithout first gluing the tires to the wheels.

● Install the front and rear wheels, making sure to tighten the wheel retaining nuts firmly.

Step 11: Mounting Your Tires and the Wheels

After mounting the tire onto thewheel, carefully glue the tire to thewheel, using a good quality tire glue.

Tighten the wheel retainingnu ts f i rm ly, us ing a17mm diameter wrench.

Make sure that the tirebead fits firmly into themolded grooves in thewheel.


Step 12: Mounting the Body

● Carefully cut out the clear body along the molded scribe lines, using a pair of Lexan scissors.

● Using 220 grit sandpaper, carefully sand the edges of the body smooth and straight. Be very careful not to scratch the body during thisprocess.

● Using a body reamer, cut out the holes in the top of the body for the three body posts and the receiver antenna tube to exit. Theselocations are marked by molded dimples in the top of the body.

● Carefully cut out the tuned pipe clearance notch in the left side of the body, the engine cooling hole in the front windshield and thecylinder head clearance hole in the top of the body. Again, follow the molded scribe lines when making these cutouts.

● Wash the inside of the body with warm water and non-abrasive liquid detergent to remove any chemicals left from the moldingprocess, then completely dry the body, using a soft cloth. After drying with a soft cloth, allow the body to air dry for a while.

● Paint the inside of the body, using your favorite materials and methods. Do not paint the outside of the body.

● After the paint dries completely, peel back and remove the protective plastic material from the outside of the body, then apply thedecals that are included to the body.

● Secure the wing to the chassis, using the two nylon washers and long metal mounting clip provided.

● Secure the body in place, using the two metal body clips provided - one long and one short.

The body comes with a thin, self-adhesiveprotective covering attached to the outersurface of the body. Leave this in place untilafter painting the inside of the body, thenremove it before applying the decals.

Now that you are done with the final assembly of your X-Terminator Pro, it's time to prepare your X-Terminator Pro for its first run.

Step 1: Final Assembly

SECTION 4: PREPARING TO RUN YOUR X-TERMINATOR PRO

To prevent any chance of a runaway vehicle, your radio system should be range-checked before the first run of the day and/or after acrash. Your radio control system instructions may have similar procedures. To range-check your radio system, do the following:

❑ With the transmitter and receiver turned on, extend the transmitter antenna completely.

✦✦✦✦✦IMPORTANT✦✦✦✦✦ Remember to always turn on the transmitter first, then turn on the receiver.

❑ With the X-Terminator Pro on the ground (without the engine running) walk away from it about 150 feet. Move the steering wheelwhile looking at the vehicle's wheels. The wheels should pivot back and forth as you rotate the steering wheel back and forth.

✦✦✦✦✦WARNING✦✦✦✦✦ Never attempt to operate your X-Terminator Pro if your radio control system is not functioning properly. Doing so couldbe harmful to others around you and/or to you or your car.

Step 1: Range-Checking Your Radio System

Drawings represent general trimming, cutting, washing and painting steps. The X-Terminator Probody shape will differ, although the steps will generally be the same.


❑ With the transmitter and the receiver turned on, rotate yourtransmitter's wheel forward (to the right). The front wheels on theX-Terminator Pro should turn right.

✦✦✦✦✦IMPORTANT✦✦✦✦✦ If the wheels don't turn right, flip the steering servoreversing switch on your transmitter to change the direction.

❑ Rotate your transmitter's wheel backward (to the left). The frontwheels on the X-Terminator Pro should turn left. Let go of the wheel.The X-Terminator Pro's wheels should return to center.

✦✦✦✦✦IMPORTANT✦✦✦✦✦ If the wheels do not point straight ahead (center)after you return the steering wheel to center, move the steering trimlever on your transmitter to adjust the wheels so that they pointstraight ahead.

Step 2: Double-Check the Steering and Throttle and Brake Controls

❑ Carefully pull the air filter assembly off of your engine's carburetor.

❑ Pull back on your transmitter's throttle trigger. The carburetor barrelshould open completely and both brakes should be disengaged.

❑ Let go of your transmitter's trigger and the carburetor barrel shouldreturn to its idle position - open about 1/16". Both brakes should still bedisengaged.

✦✦✦✦✦IMPORTANT✦✦✦✦✦ If the carburetor barrel does not open when youpull back on the trigger, flip the throttle servo reversing switch onyour transmitter to change the direction.

If the carburetor barrel does not open completely, move the throttletrim lever on your transmitter until the barrel is opened completelywhen you pull back completely on the trigger.

❑ Push your transmitter's throttle trigger forward. The carburetorbarrel should stay in the idle position and both brake levers shouldmove forward and engage the brakes.

❑ Let go of the trigger and both brake levers should disengage.

✦✦✦✦✦IMPORTANT✦✦✦✦✦ If you need to adjust the brake linkage, seepage # 15 "Adjusting the Brake Linkage" for more details.

❑ Turn off your transmitter and receiver for now and push the airfilter back onto your carburetor. Never run your X-Terminator Prowithout the air filter in place. If you don't use the air filter, your enginewill be damaged within a short period of time.


SECTION 5: FUELING AND STARTING YOUR ENGINE

The following procedures show the general way to start a nitro engine mounted in the XTM Racing X-Terminator Pro. The startingprocedures for your particular engine may differ. Make sure you are familiar with the starting and running procedures for your engine.

✦✦✦✦✦IMPORTANT✦✦✦✦✦ Under no circumstances should you operate your engine without the air filter installed. The air filterprevents dust and debris from entering the engine and damaging it.

❑ Lift the fuel tank lid and carefully fill the fuel tank until the fuel level is just below the topof the tank.

✦✦✦✦✦WARNING✦✦✦✦✦ Use fuel that is appropriate for nitro car and buggy engines. DO NOTUSE GASOLINE!

❑ Using your glow plug wrench, install and tighten a glow plug into your engine's cylinder head.

❑ Connect a fully-charged glow starter to the top of the glow plug, making sure that theglow starter is locked firmly onto the top of the glow plug. You don't want it to fall off whileyou're trying to start your engine.

❑ Carefully start your engine, using your starter box or other favorite method.

☞ The X-Terminator Pro's fuel tank does not feature a primer pump. This is consistentwith most 1/8th scale buggies. If you're using a starter box to start your engine, the starterbox will spin the engine over fast enough to draw fuel on its own.

❑ To stop your engine, carefully pinch the fuel line firmly with your fingers until theengine stops. Make sure to pinch the fuel pick-up line and not the fuel pressure line. Thefuel pick-up line is connected to your carburetor.

☞ Hold your buggy while pinching the fuel line. When you pinch the fuel line, the enginewill speed up and quickly stop.

✦✦✦✦✦WARNING✦✦✦✦✦ Be careful not to touch any parts of the engine or tuned pipe becausethey will be hot.

SECTION 6: MAKING CHASSIS ADJUSTMENTS

Chassis alignment and geometry are important if you want your X-Terminator Pro to perform well. A good performing buggy means abuggy that is easier to drive, too. Follow our guidelines in this section to get the most out of your X-Terminator Pro.

✦✦✦✦✦IMPORTANT✦✦✦✦✦ It's very important when making changes to the settings of your buggy that you make the settings the same foreach side. For example, if you change the camber angle on the right front tire, you should change the camber angle on the left fronttire the same amount. If you change the spring tension on the left front shock, you should change the spring tension on the rightfront shock the same amount, and so on.

Do not make any changes that are more than 3 degrees from the initial settings listed or the handling characteristics of your buggy willbecome very poor.


RECOMMENDED INITIAL SETTINGS:

● 0 degrees toe-in on the front and rear for overall best 4WD driveability on most surfaces.

☞ Adding more than 3 degrees of toe-in or toe-out will result in excessive loss of speedand erratic handling.

✦✦✦✦✦IMPORTANT✦✦✦✦✦ For more precise toe-in adjustments, use the R.P.M. Toe-in Gaugepart # 708049.

The toe angle is the angle of both front tires (or rear tires) to each other, when viewed from above. Toe-in is when the front of both tirespoint toward each other and toe-out is when the front of both tires point away from each other.

● For the front tires, toe-in will make your buggy track straighter, but the steering will be more sensitive. Toe-out will desensitize thesteering, making your buggy a little more driver-friendly.

● For the rear tires, if you're running on a smooth surface, we suggest no toe-in. If you are running on a rough surface, we suggest about1 - 2 degrees of toe-in. This will give the rear end a little more "bite."

To adjust the toe-in on the rear tires, use one of the different composite toe angle blocksprovided in your kit to set the desired toe angle. For convenience, the degree of toe anglein each block is molded into the back of the blocks.

To change the rear toe angle block, carefully remove the two C-Clips holding the rearhinge pins in place. Next, remove the two screws that hold the toe angle block in place.Replace the toe-angle block with the desired one. Installation is the reverse of thedisassembly procedure.

To adjust the toe-angle of the front tires, turn the tie-rods (steel rods connecting each wheel to the steering arm) in or out with anadjustable wrench. To adjust the toe angle of the rear tires, you need to replace the toe angle block, using the reference below:

Step 1: Adjusting the Toe Angle

Camber is referred to as the amount of the tire's surface that contacts the ground. Tires that are exactly perpendicular to the groundhave 0 degrees of camber. If the top of the tire leans in toward the chassis, the tire has negative camber. If the top of the tire leans outaway from the chassis, the tire has positive camber.

RECOMMENDED INITIAL CAMBER SETTINGS:● For driving on smooth surfaces set both the front and back wheels at 0 degrees.

● For driving on rough surfaces set the front wheels at -1 degree and the back wheels at -2 degrees.

Step 2: Adjusting the Camber Angle

Adjust the camber angle of the wheels by turning the upper turnbuckles in or out using an adjustable wrench.

☞ Camber settings should be measuredwith the vehicle at its normal ride height.

✦✦✦✦✦IMPORTANT✦✦✦✦✦ For more precisecamber adjustments, use the R.P.M.Precision Camber Gauge part # 708099.

Negative Camber Positive Camber

Toe Angle Exaggerated forPhoto Clarity

Negative CamberExaggerated for

Photo Clarity

Positive CamberExaggerated for

Photo Clarity


By adjusting the spring tension of the shocks, you can increase steering sensitivity and increase the ride-height of your buggy. How youdrive your buggy will dictate what settings you should be using. As an example, if you're using your buggy off-road and going over lotsof jumps, you may want to increase the spring tension of the front shocks to help prevent the front of the buggy from bottoming out.

RECOMMENDED INITIAL SETTINGS:

● We recommend initially leaving the adjustment rings in the factory locations.

Step 3: Adjusting Shock Spring Tension

Increase or decrease spring tension by threading the adjustment ring up or down theshock body. Threading the ring down increases spring tension and the buggy's ride heightand threading the ring up decreases spring tension and the buggy's ride height.

☞ When adjusting the spring tension, make sure to adjust the right and left sides equally.

Changing the shock oil (the oil inside the shocks) will change the dampening characteristics of the shocks. Typically, if you are runningon smooth surfaces, use a heavier weight oil. If you are running on rough surfaces, use a lighter weight oil.

✦✦✦✦✦IMPORTANT✦✦✦✦✦ We recommend using only 100% Silicone Shock Oil. Do not use motor oil. The shock oil in the X-Terminator Pro'sshocks is good for most off-road applications.

Shock springs are easy to change and can make a difference in the way your buggy handles relative to the type of terrain you're runningon. If you run your buggy off-road, in a smooth, high-traction area, use stiffer springs to reduce body roll and weight shift. If the areawhere you run your buggy is very bumpy, you might consider using softer springs to help absorb the bumps. If the area is bumpy and youuse harder springs, the buggy will have a tendency to jump and hop around. The shock springs included with the X-Terminator Pro aresuitable for most general off-road applications, but experimentation with different shock springs may be necessary to find a setup thatsuits your particular driving style and location.

Step 4: Adjusting Shock Dampening and Replacement Shock Springs

With the transmitter and receiver turned on, and the throttle and brake trim lever centered,the buggy should roll smoothly (i.e., the brakes should be disengaged). If the brakesare dragging when the throttle trigger is at neutral, the brake discs will wear out veryquickly. To ensure that the brakes are disengaged, always make sure that there is a 1/16"wide gap between the two rear adjustment collars and the brake levers. Both adjustmentcollars should be adjusted so that they are equal distance behind each of the two brakelevers (see important note below). This will ensure that both brake levers engage equallyduring braking.

● To make adjustments to the brake linkage, simply loosen the grub screw in theadjustment collar behind each brake lever and reposition it, then retighten the grub screw.

The X-Terminator Pro uses a dual-disc brake system that can operate the front and rear brakes independently. This design allows youto set up differential braking. Depending on your track conditions and driving techniques, you might want the front brakes to engagebefore the rear brakes or vice-versa.

Step 5: Adjusting the Brake Linkage

✦✦✦✦✦IMPORTANT NOTE✦✦✦✦✦ Since the front and rear brakes can be adjusted independently of each other, you may not want both front andrear brakes to engage at the same time. If you want the rear brakes to engage just before the front brakes, move the collar at the frontbrake lever just a fraction further back from neutral. This will result in the back brakes engaging just before the front brakes. If youwant the front brakes to engage just before the rear brakes, move the collar at the rear brake lever just a fraction further back fromneutral. This will result in the front brakes engaging just before the back brakes. Experimentation will be necessary to achieve thedesired braking response, dependant on your track conditions and driving style.


The X-Terminator Pro features front and rear gear differentials that each feature five o-ring seals and cup-style housings. Both differentialsare packed with differential grease that is good for most driving conditions.

You can make fine-tuned adjustments to each differential by removing the differentials from the chassis, opening them up and replacingthe grease already inside the differentials with heavy-weight silicone shock oil. Removal, disassembly and reinstallation of the differentialscan be done, using the exploded parts diagram included with your kit.

● Adding heavier silicone oil will tighten the differentials and adding lighter silicone oil will loosen the differentials. If your buggy feelsloose during turns, you can tighten the front differential or loosen the rear differential. If your buggy is pushing during turns, you canloosen the front differential or tighten the rear differential. We recommend using silicone shock oil weights between 30,000 and 100,000.

✦✦✦✦✦WARNING✦✦✦✦✦ We don't recommend attempting to make adjustments to the differentials unless you have knowledge of how toremove, disassemble and reassemble gear differentials. If you don't reassemble the differentials properly, damage to the differentialswill happen quickly and will not be covered by warranty.

Step 6: Adjusting the Front and Rear Differentials

Out of the box, the X-Terminator Pro has a stiff sway bar installed. This sway bar will give good performance in most conditions. Wehave included a more flexible sway bar should you want to change it.

Step 7: Changing the Rear Sway Bar

To remove the stock sway bar, first loosen the grub screws in the collars at each end of thesway bar. Next, remove the four screws that hold the sway bar block in place, thenremove the sway bar block and pull the sway bar out. Replace the sway bar with the moreflexible one. Installation is the reverse of the disassembly procedure.

For your convenience we've included amaintenance list, along with an extensive

troubleshooting guide on the next few pages.

If you need to purchase replacement parts for yourX-Terminator Pro, please check the informationlisted on the back page of this Assembly Manual

and Tuning Guide.


Following a simple maintenance schedule will ensure that your X-Terminator Pro, engine and radio system operate in top conditionevery time you use them. It is strongly suggested.

● Check the foam air filter element for dirt blockage. If the foamis dirty, remove it from the filter housing and wash it in liquid soapand warm water. Dry the foam element with a paper towel,reinstall it and "wet" it with after-run oil.

● Check the chassis for any loose screws, especially the engine,tuned pipe and outdrive cup mounting screws. Tighten them ifnecessary.

● Check the steering linkage and the throttle and brake linkagefor any signs of wear or misalignment. Tighten and/or readjustthem if necessary.

● Once in a while, remove the wheels and clean the wheel bearingsusing a bearing cleaner. This will remove any dust and grit thatmay, over time, damage the bearings. After cleaning thebearings, re-oil them using a good quality bearing oil. Never runthe bearings dry or damage to the bearings will result.

● Check the fuel system, including the fuel tank and fuel lines,for any signs of cracking or looseness. Replace any fuel line yoususpect may be damaged.

● Periodically check the condition of the transmitter and receiverbatteries. If you think they might be low, replace them with afresh set and/or recharge them.

● Included in your kit is a plastic sprue that includes some plasticreplacement parts. Included are fuel line clips, throttle linkagemounts and other small accessories.

● After a period of time the chassis will accumulate a lot of dirtand debris, especially around the engine area. This build-upshould be cleaned off using a high-powered spray cleaner likeEmerald Nitro Car Cleaner. Some nitro car cleaners will damageanodized and/or plated parts. Test on an inconspicuousarea first.

● After cleaning the chassis and engine with Nitro Car Cleaneryou should oil the moving parts of the chassis. Do not oil theclutch bell, spur gears or the brake discs.

● Always use new fuel and keep the cap on the fuel tightly closed.As fuel ages it absorbs water, which degrades the fuel's performanceand causes erratic engine operation.

● After you have finished using the engine for the day, removethe glow plug and squirt several drops of a high-quality after-runoil into the cylinder. Reinstall the glow plug and crank the engineover a couple of times (without the glow starter attached) todistribute the oil. This will prevent corrosion inside the engine.

● Never leave unused fuel in the fuel tank for more than a coupleof days. The nitromethane and methanol in the fuel willevaporate, leaving the oil behind. This will eventually turn into athick sludge that will require replacement of the fuel tank to fix.

SECTION 7: MAINTAINING YOUR X-TERMINATOR PRO


This troubleshooting guide has been provided to help you diagnose and solve most problems that you may encounter with your X-TerminatorPro. Most problems encountered can be solved by carefully following the problem-cause-solution sections. If you cannot solve theproblem using this troubleshooting guide, please feel free to contact us at the address, phone number or email address shown on thesecond page of this Assembly Manual and Tuning Guide.

SECTION 8: TROUBLESHOOTING GUIDE

PROBLEM CAUSE SOLUTION

1) Vehicle pulls to one side A) Steering trim out of adjustment A) Readjust trim to center both wheelsB) Toe angle out of adjustment B) Readjust toe angleC) One wheel is hanging or has damaged bearing C) Remove wheel and clean bearing. Replace if necessary

2) Brakes seem ineffective A) Brake linkage out of adjustment A) Readjust brake linkageB) Brake disc(s) worn B) Replace brake disc(s)

3) Clutch does not engage A) Clutch shoes damaged or worn A) Replace clutch shoesB) Clutch bell damaged or worn B) Replace clutch bell

4) Clutch does not disengage A) Clutch springs worn or damaged A) Replace clutch springs

5) Buggy does not "go" A) Stripped spur gear A) Replace spur gearB) Stripped differential gear(s) B) Replace differential gear(s)C) Clutch shoes slipping D) Clean clutch bell as described on page # 6 and

carefu l ly remove any "g laze" f rom the c lu tchshoes, using the same method

6) Suspension not smooth or free A) One or more shocks sticking A) Clean and/or rebuild the affected shockB) Bent shock shaft B) Rebuild affected shockC) Bent or otherwise damaged hinge pin C) Replace hinge pin

7) Shocks leaking oil A) Shock seals worn A) Replace shock sealsB) Bent shock shaft B) Rebuild affected shock

8) Brakes are ineffective A) Brake linkage out of adjustment A) Readjust brake linkage as described on page # 14B) Brake disc(s) worn or damaged B) Replace brake disc(s)

9) Spur gear strips out A) Gear mesh too loose A) Replace spur gear and readjust gear mesh asdescribed on page # 5

10) Vehicle rolls while engine A) Engine idle is too high A) Lower your engine's idle speedis idling




IMPORTANT WARRANTY SERVICE INFORMATION

Before returning your X-Terminator Pro for warranty consideration, the status of the unit must be within the guarantee as stated above.Do not return your X-Terminator Pro to the place of purchase. They are not authorized or equipped to perform warranty work on XTMRacing products. When requesting warranty service, please observe the following:

● Crash damage will not be covered under warranty. Do not request warranty service for a crash-damaged product.

● This warranty only covers the XTM Racing X-Terminator Pro only. It does not cover your own engine or radio control system. Pleaseremove your engine, radio control system and batteries from the chassis before sending the product to us.

● Include a note detailing the problem or service you are requesting. Service cannot be provided without this information. Include yourdaytime phone number, shipping address and/or email address in the event we need more details pertaining to the service requested.

● If your vehicle is out of the warranty period you may request an estimate of services at the time you return your vehicle for service. Anomission of this request implies permission for Global Services to service your vehicle at our discretion.

● Include a method of payment for any service charges.

● Send the unit to us by United Parcel Service, Federal Express or by Insured Mail. Postage is non-refundable. Send your package to:

IMPORTANT WARRANTY INFORMATION - PLEASE READ!

Your XTM Racing X-Terminator Pro is warranted against manufacturer defects in materials and workmanship for a period of 90 daysfrom the date of purchase. Warranty service will be provided within 90 days of the date of purchase only if you are able to provide theoriginal or a copy of the original dated sales receipt.

To locate the dealer nearest you, please call us at (714) 963-0133 or visit our dealer directory on the Internet atwww.globalhobby.com/where2buy.htm

or Order Directly From Us at the Address, Phone Number or Web Site Shown Above

Visit Our Websitehttp://globalservices.globalhobby.com

Global Services18480 Bandilier CircleFountain Valley CA 92708

Phone: (714) 963-0329 Fax: (714) 964-6236 Email: [email protected]

PURCHASING REPLACEMENT PARTS

Included with your X-Terminator Pro is a separate booklet listing all of the replacement parts that are available, along with theirrespective part numbers. Replacement parts are available through your local authorized XTM Racing dealer or directly from us.

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