7/29/2019 86016803-01

1/7

0

CA940

Identification Record

PLEASE RECORD THE FOLLOWING INFORMATION:

1.

Engine Model andHorsepower

Engine SerialNumber

2.

Transom Assembly SerialNumber (Sterndrive)

GearRatio

Sterndrive UnitSerial Number

3.Transmission Model(Inboard)

GearRatio

TransmissionSerial Number

4.

Propeller Number Pitch Diameter

5.

Hull Identification Number(HIN) PurchaseDate

6.

Boat Manufacturer BoatModel

Length

7.

Exhaust Gas Emissions Certificate Number (Europe Only)

SERIAL NUMBERS

The serial numbers are the manufacturers keys to numerous engineering details

which apply to your Mercury MerCruiser power package. When contacting yourAuthorized Mercury MerCruiser Dealer about service, always specify model andserial numbers.

The description and specifications contained herein were in effect at the time thisguide was approved for printing. Mercury Marine, whose policy is one of continuous

improvement, reserves the right to discontinue models at any time, or to changespecifications or designs, without notice and without incurring obligation.

Mercury Marine, Fond du Lac, Wisconsin, U.S.A. Printed in U.S.A.

2001, Mercury Marine

The following are registered trademarks of Brunswick Corporation: AutoBlend, Jet-Prop,Mariner, Merc, MerCathode, MerCruiser, Mercury, Mercury Marine, Quicksilver, RideGuide,Thruster and MMPP.

INDEX

7/29/2019 86016803-01

2/7

1

CA910

71352

ABC12345Z123

-19 48-12345

71345

4

5 1

2

2,7

7

2

1

44

5

746771,2

COLOR CODE

MERCRUISER

Division of Mercury Marine

Stillwater, OK, U.S.A.

SPECIFICATIONS

MODEL MCM 4.3LX/4.3LXH GEN +.

DISPLACEMENT 262 CID. . . . . . . . .

IGNITION TIMING 10 BTDC. . . . . . .

CYL. FIRING ORDER 1-6-5-4-3-2. . .

SPARK PLUGS AC-MR43LTS. . . . .

ENGINE ROTATION LH. . . . . . . . . . .

MAX W.O.T. rpm 4400-4800. . . . . . .

IDLE rpm IN NEUTRAL 650. . . . . . . .

PLUG GAP .045. . . . . . . . . . . . . . . . .

For Fuel and Oilrequirements refer toOperations & Maintenance Manual

SERIAL NUMBERS

748492

276454

INDEX

7/29/2019 86016803-01

3/7

2

CA961

THIS PAGE IS INTENTIONALLY BLANK

INDEX

7/29/2019 86016803-01

4/7

3

CA859

Welcome!

You have selected one of the finest marine power packagesavailable. It incorporates numerous design features to assureoperating ease and durability.

With proper care and maintenance, you will thoroughly enjoy usingthis product for many boating seasons. To ensure maximumperformance and carefree use, we ask that you thoroughly read thismanual.

The Operation, Maintenance and Warranty Manual contains specific

instructions for using and maintaining your product. We suggest thatthis manual remain with the product for ready reference wheneveryou are on the water.

Thank you for purchasing one of our Mercury MerCruiser products.We sincerely hope your boating will be pleasant!

Consumer Affairs Department

CA741

Warranty Message

The product you have purchased comes with a limited warrantyfrom Mercury Marine; the terms of the warranty are set forth in theWarrantySections of this manual. The warranty statement containsa description of what is covered, what is not covered, the duration ofcoverage, how to best obtain warranty coverage, important

disclaimers and limitations of damages, and other relatedinformation. Please review this important information.

INDEX

7/29/2019 86016803-01

5/7

4

TABLE OF CONTENTS

Page

Warranty Information 6Owner Warranty Registration 6. . . . . . . . . . . . . . . . . . . . . . . . .International Owner Registration 7. . . . . . . . . . . . . . . . . . . . . .Mercury MerCruiser Limited Warranty 8. . . . . . . . . . . . . . . . .3 Year Limited Warranty Against Corrosion Failure 12. . . . . .Transferable Warranty 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Mercury Product Protection Plan 16. . . . . . . . . . . . . . . . . . . . . .

Read This Manual Thoroughly 18

General Information 21

Lanyard Stop Switch 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Exhaust Emissions 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Wave And Wake Jumping 25. . . . . . . . . . . . . . . . . . . . . . . . . . .Impact With Underwater Hazards 26. . . . . . . . . . . . . . . . . . . . .

Operating With Low Water Inlets In Shallow Water 28. . . . . .Drive Unit Impact Protection 29. . . . . . . . . . . . . . . . . . . . . . . . .Safe Boating Suggestions 30. . . . . . . . . . . . . . . . . . . . . . . . . . .Protecting People In The Water 34. . . . . . . . . . . . . . . . . . . . . . .High-Speed And High-Performance Boat Operation 35. . . . .

Conditions Affecting Operation 36

Important Information 42Operation And Maintenance 42. . . . . . . . . . . . . . . . . . . . . . . . .Freezing Temperature Operation 44. . . . . . . . . . . . . . . . . . . . .Drain Plug and Bilge Pump 44. . . . . . . . . . . . . . . . . . . . . . . . . .Emissions Information (Europe Only) 45. . . . . . . . . . . . . . . . . .Attention Required After Submersion 45. . . . . . . . . . . . . . . . . .Trailering Boat 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Launching And Boat Operation Care 46. . . . . . . . . . . . . . . . . .

Stolen Power Package 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Replacement Service Parts 47. . . . . . . . . . . . . . . . . . . . . . . . . .Do-It-Yourself Maintenance Suggestions 48. . . . . . . . . . . . . . .Multiple EFI Engine Battery Precautions 50. . . . . . . . . . . . . . .Diagnosing EFI Problems (If Equipped) 51. . . . . . . . . . . . . . . .20-Hour Break-In Period 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . .After Break-In Period 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .End of First Season Checkup 53. . . . . . . . . . . . . . . . . . . . . . . .

INDEX

7/29/2019 86016803-01

6/7

5

Page

Operation 54

Instrumentation 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Audio Warning System 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Electrical System Overload Protection 58. . . . . . . . . . . . . . . . .Remote Controls 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Power Trim 64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Starting, Shifting And Stopping 67. . . . . . . . . . . . . . . . . . . . . . .Operation Chart 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications 72

Fuel Recommendations 72. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Seacock Size Recommendation 75. . . . . . . . . . . . . . . . . . . . . .Crankcase Oil 75. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Engine 77. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance 83

Maintenance Aids 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fluid Capacities 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Maintenance Chart 86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking Fluids 89. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fuel Pump Sight Tube Inspection 3.0L Models 93. . . . . . . . .Changing Fluids 94. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Changing Water Separating Fuel Filter 99. . . . . . . . . . . . . . . .Cleaning Flame Arrestor and Related Components 102. . . . .Lubrication 104. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Propeller 108. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Drive Belts 120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Corrosion And Corrosion Protection 128. . . . . . . . . . . . . . . . . . .

Emissions (Europe Only) 134. . . . . . . . . . . . . . . . . . . . . . . . . . . .Battery 138. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inspection And Maintenance 139. . . . . . . . . . . . . . . . . . . . . . . . .

Cold Weather or Extended Storage 140

Power Package Lay Up 140. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Draining Instructions 145. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Flushing Cooling System 158. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Battery Winter Storage 161. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Power Package Recommissioning 162. . . . . . . . . . . . . . . . . . . .

Troubleshooting 164

Owner Service Assistance 173

INDEX

7/29/2019 86016803-01

7/7

6

CA455

Warranty Information

Owner Warranty Registration

UNITED STATES AND CANADA ONLY

It is important that your selling dealer fills out the WarrantyRegistration Card completely and mails it to the factoryimmediately upon sale of the new product.

It identifies name and address of the original purchaser, productmodel and serial number(s), date of sale, type of use and selling

dealers code, name and address. The dealer also certifies thatyou are the original purchaser and user of the product.

Upon receipt of the Warranty Registration Card at the factory, youwill be issued a plastic Owner Warranty Registration Card whichis your only valid registration identification. It must be presentedto the servicing dealer should warranty service be required.Warranty claims will not be accepted without presentation of thiscard.

A temporary Owner Warranty Registration Card will be presentedto you when you purchase the product. It is valid only for 30 daysfrom date of sale while your plastic Owner Warranty RegistrationCard is being processed. Should your product need serviceduring this period, present the temporary registration card to thedealer. He will attach it to your warranty claim form.

Because of your selling dealers continuing personal interest inyour satisfaction, the product should be returned to him forwarranty service.

If your plastic card is not received within 30 days from date of newproduct sale, please contact your selling dealer.

The product warranty is not effective until the product is registeredat the factory.

NOTICE: Registration lists must be maintained by factory anddealer on marine products sold in the United States, shouldnotification under the Federal Boat Safety Act be required.

INDEX