Yamaha YZF-R6R, YZF-R6RC, YZF-R6SR SERVICE MANUAL

4.5 (6)
Yamaha YZF-R6R, YZF-R6RC, YZF-R6SR SERVICE MANUAL

EAS00010

YZF-R6R/YZF-R6SR

YZF-R6RC/YZF-R6SRC

SERVICE MANUAL2002 by Yamaha Motor

Corporation, U.S.A. First edition, December 2002

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

Printed in U.S.A.

P/N LIT-11616-16-45

EAS00030

NOTICE

This manual was produced by the Yamaha Motor Company, Ltd. primarily for use by Yamaha dealers and their qualified mechanics. It is not possible to include all the knowledge of a mechanic in one manual. Therefore, anyone who uses this book to perform maintenance and repairs on Yamaha vehicles should have a basic understanding of mechanics and the techniques to repair these types of vehicles. Repair and maintenance work attempted by anyone without this knowledge is likely to render the vehicle unsafe and unfit for use.

This model has been designed and manufactured to perform within certain specifications in regard to performance and emissions. Proper service with the correct tools is necessary to ensure that the vehicle will operate as designed. If there is any question about a service procedure, it is imperative that you contact a Yamaha dealer for any service information changes that apply to this model. This policy is intended to provide the customer with the most satisfaction from his vehicle and to conform to federal environmental quality objectives.

Yamaha Motor Company, Ltd. is continually striving to improve all of its models. Modifications and significant changes in specifications or procedures will be forwarded to all authorized Yamaha dealers and will appear in future editions of this manual where applicable.

NOTE:

SThis Service Manual contains information regarding periodic maintenance to the emission control system. Please read this material carefully.

SDesigns and specifications are subject to change without notice.

EAS00040

IMPORTANT MANUAL INFORMATION

Particularly important information is distinguished in this manual by the following.

WARNING

CAUTION:

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 checking or repairing the motorcycle.

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

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

EAS00007

HOW TO USE THIS MANUAL

This manual is intended as a handy, easy-to-read reference book for the mechanic. Comprehensive explanations of all installation, removal, disassembly, assembly, repair and check procedures are laid out with the individual steps in sequential order.

1The manual is divided into chapters. An abbreviation and symbol in the upper right corner of each page indicate the current chapter.

Refer to “SYMBOLS”.

2Each chapter is divided into sections. The current section title is shown at the top of each page, except in Chapter 3 (“PERIODIC CHECKS AND ADJUSTMENTS”), where the sub-section title(s) appears.

3Sub-section titles appear in smaller print than the section title.

4To help identify parts and clarify procedure steps, there are exploded diagrams at the start of each removal and disassembly section.

5Numbers are given in the order of the jobs in the exploded diagram. A circled number indicates a disassembly step.

6Symbols indicate parts to be lubricated or replaced.

Refer to “SYMBOLS”.

7A job instruction chart accompanies the exploded diagram, providing the order of jobs, names of parts, notes in jobs, etc.

8Jobs requiring more information (such as special tools and technical data) are described sequen-

tially.

2

1

3

4

5

8

6

7

1

2

GEN

SPEC

INFO

 

3

4

CHK

CHAS

ADJ

 

5

6

ENG

COOL

7

8

 

ELEC

9

10

TRBL

 

SHTG

 

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

EAS00008

SYMBOLS

The following symbols are not relevant to every vehicle.

Symbols 1 to 9 indicate the subject of each chapter.

1General information

2Specifications

3Periodic checks and adjustments

4Chassis

5Engine

6Cooling system

7Fuel injection system

8Electrical system

9Troubleshooting

Symbols 10 to 17 indicate the following.

10Serviceable with engine mounted

11Filling fluid

12Lubricant

13Special tool

14Tightening torque

15Wear limit, clearance

16Engine speed

17Electrical data

Symbols 18 to 23 in the exploded diagrams indicate the types of lubricants and lubrication points.

18Engine oil

19Gear oil

20Molybdenum-disulfide oil

21Wheel-bearing grease

22Lithium-soap- based grease

23Molybdenum-disulfide grease

Symbols 24 to 25 in the exploded diagrams indicate the following.

24Apply locking agent (LOCTITE )

25Replace the part

EAS00012

TABLE OF CONTENTS

GENERAL INFORMATION

 

 

GEN

1

 

INFO

 

 

 

SPECIFICATIONS

 

 

SPEC

2

 

 

 

 

PERIODIC CHECKS AND

 

 

CHK

3

ADJUSTMENTS

ADJ

 

 

 

CHASSIS

 

 

CHAS

4

 

 

 

 

ENGINE

 

 

ENG

5

 

 

 

 

COOLING SYSTEM

 

 

COOL

6

 

 

 

 

FUEL INJECTION SYSTEM

 

 

FI

7

 

 

 

 

ELECTRICAL SYSTEM

 

 

ELEC

8

 

 

 

 

TROUBLESHOOTING

 

 

TRBL

9

 

SHTG

CHAPTER 1

GENERAL INFORMATION

MOTORCYCLE IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

VEHICLE IDENTIFICATION NUMBER . . . . . . . . . . . . . . . . . . . . . . . .

1-1

MODEL LABEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2

OUTLINE OF FI SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2

FI SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3

INSTRUMENT FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4

IMPORTANT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-7

PREPARATION FOR REMOVAL AND DISASSEMBLY . . . . . . . . .

1-7

REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-7

GASKETS, OIL SEALS AND O-RINGS . . . . . . . . . . . . . . . . . . . . . . .

1-7

LOCK WASHERS/PLATES AND COTTER PINS . . . . . . . . . . . . . .

1-8

BEARINGS AND OIL SEALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-8

CIRCLIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-8

CHECKING THE CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-9

SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-10

CHAPTER 2

SPECIFICATIONS

GENERAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1

ENGINE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2

CHASSIS SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-11

ELECTRICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-15

CONVERSION TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-18

GENERAL TIGHTENING TORQUE SPECIFICATIONS . . . . . . . . . . . .

2-18

TIGHTENING TORQUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-19

ENGINE TIGHTENING TORQUES . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-19

CHASSIS TIGHTENING TORQUES . . . . . . . . . . . . . . . . . . . . . . . . . .

2-22

LUBRICATION POINTS AND LUBRICANT TYPES . . . . . . . . . . . . . . .

2-24

ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-24

CHASSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-25

COOLING SYSTEM DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-26

ENGINE OIL LUBRICATION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-30

LUBRICATION DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-31

CABLE ROUTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-37

CHAPTER 3

PERIODIC CHECKS AND ADJUSTMENTS

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1

PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL

 

SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1

GENERAL MAINTENANCE AND LUBRICATION CHART . . . . . . . . .

3-1

SEATS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3

FUEL TANK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4

REMOVING THE FUEL TANK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5

REMOVING THE FUEL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5

INSTALLING THE FUEL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6

INSTALLING THE FUEL TANK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6

COWLINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7

REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-8

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-8

AIR FILTER CASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-9

ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-10

ADJUSTING THE VALVE CLEARANCE . . . . . . . . . . . . . . . . . . . . . .

3-10

SYNCHRONIZING THE THROTTLE BODIES . . . . . . . . . . . . . . . . .

3-16

ADJUSTING THE ENGINE IDLING SPEED . . . . . . . . . . . . . . . . . . .

3-18

ADJUSTING THE THROTTLE CABLE FREE PLAY . . . . . . . . . . . .

3-19

CHECKING THE SPARK PLUGS . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-21

MEASURING THE COMPRESSION PRESSURE . . . . . . . . . . . . . .

3-22

CHECKING THE ENGINE OIL LEVEL . . . . . . . . . . . . . . . . . . . . . . . .

3-24

CHANGING THE ENGINE OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-25

MEASURING THE ENGINE OIL PRESSURE . . . . . . . . . . . . . . . . .

3-27

ADJUSTING THE CLUTCH CABLE FREE PLAY . . . . . . . . . . . . . . .

3-29

CLEANING THE AIR FILTER ELEMENT . . . . . . . . . . . . . . . . . . . . . .

3-30

CLEANING THE AIR INTAKE SYSTEM SURGE TANKS . . . . . . . .

3-31

CHECKING THE THROTTLE BODY JOINTS . . . . . . . . . . . . . . . . . .

3-31

CHECKING THE FUEL AND BREATHER HOSES . . . . . . . . . . . . .

3-32

CHECKING THE CRANKCASE BREATHER HOSE . . . . . . . . . . . .

3-32

CHECKING THE EXHAUST SYSTEM . . . . . . . . . . . . . . . . . . . . . . . .

3-33

CHECKING THE COOLANT LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . .

3-33

CHECKING THE COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . .

3-34

CHANGING THE COOLANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-35

CHASSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39 ADJUSTING THE FRONT BRAKE . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39 ADJUSTING THE REAR BRAKE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40 CHECKING THE BRAKE FLUID LEVEL . . . . . . . . . . . . . . . . . . . . . . 3-41 ADJUSTING THE REAR BRAKE LIGHT SWITCH . . . . . . . . . . . . . 3-42 CHECKING THE FRONT AND REAR BRAKE PADS . . . . . . . . . . . 3-43 CHECKING THE FRONT AND REAR BRAKE HOSES . . . . . . . . . 3-43 BLEEDING THE HYDRAULIC BRAKE SYSTEM . . . . . . . . . . . . . . . 3-44 ADJUSTING THE SHIFT PEDAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45 ADJUSTING THE DRIVE CHAIN SLACK . . . . . . . . . . . . . . . . . . . . . 3-46 LUBRICATING THE DRIVE CHAIN . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47 CHECKING AND ADJUSTING THE STEERING HEAD . . . . . . . . . 3-48 CHECKING THE FRONT FORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50 ADJUSTING THE FRONT FORK LEGS . . . . . . . . . . . . . . . . . . . . . . 3-51 ADJUSTING THE REAR SHOCK ABSORBER ASSEMBLY . . . . . 3-53 CHECKING THE TIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55 CHECKING THE WHEELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-57 CHECKING AND LUBRICATING THE CABLES . . . . . . . . . . . . . . . 3-58 LUBRICATING THE LEVERS AND PEDALS . . . . . . . . . . . . . . . . . . 3-58 LUBRICATING THE SIDESTAND . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-58 LUBRICATING THE REAR SUSPENSION . . . . . . . . . . . . . . . . . . . . 3-58

ELECTRICAL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59 CHECKING AND CHARGING THE BATTERY . . . . . . . . . . . . . . . . . 3-59 CHECKING THE FUSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-64 REPLACING THE HEADLIGHT BULBS . . . . . . . . . . . . . . . . . . . . . . 3-66 ADJUSTING THE HEADLIGHT BEAMS . . . . . . . . . . . . . . . . . . . . . . 3-67

CHAPTER 4

CHASSIS

FRONT WHEEL AND BRAKE DISCS . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 REMOVING THE FRONT WHEEL . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 CHECKING THE FRONT WHEEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 CHECKING THE BRAKE DISCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 INSTALLING THE FRONT WHEEL . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 ADJUSTING THE FRONT WHEEL STATIC BALANCE . . . . . . . . . 4-7

REAR WHEEL AND BRAKE DISC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 REAR WHEEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 REAR BRAKE DISC AND REAR WHEEL SPROCKET . . . . . . . . . 4-10 REMOVING THE REAR WHEEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12 CHECKING THE REAR WHEEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13 CHECKING THE REAR WHEEL DRIVE HUB . . . . . . . . . . . . . . . . . 4-13 CHECKING AND REPLACING THE REAR WHEEL

SPROCKET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13 INSTALLING THE REAR WHEEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14 ADJUSTING THE REAR WHEEL STATIC BALANCE . . . . . . . . . . . 4-15

FRONT AND REAR BRAKES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16 FRONT BRAKE PADS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16 REAR BRAKE PADS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17 REPLACING THE FRONT BRAKE PADS . . . . . . . . . . . . . . . . . . . . . 4-18 REPLACING THE REAR BRAKE PADS . . . . . . . . . . . . . . . . . . . . . . 4-21 FRONT BRAKE MASTER CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . 4-23 REAR BRAKE MASTER CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . 4-26 DISASSEMBLING THE FRONT BRAKE MASTER CYLINDER . . 4-28 DISASSEMBLING THE REAR BRAKE MASTER CYLINDER . . . . 4-28 CHECKING THE FRONT AND REAR BRAKE MASTER

CYLINDERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29 ASSEMBLING AND INSTALLING THE FRONT BRAKE MASTER

CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30 ASSEMBLING THE REAR BRAKE MASTER CYLINDER . . . . . . . 4-32 FRONT BRAKE CALIPERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34 REAR BRAKE CALIPER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36 DISASSEMBLING THE FRONT BRAKE CALIPERS . . . . . . . . . . . 4-38 DISASSEMBLING THE REAR BRAKE CALIPER . . . . . . . . . . . . . . 4-39 CHECKING THE FRONT AND REAR BRAKE CALIPERS . . . . . . 4-40 ASSEMBLING AND INSTALLING THE FRONT BRAKE

CALIPERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41 ASSEMBLING AND INSTALLING THE REAR BRAKE CALIPER . 4-43

FRONT FORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45 FRONT FORK LEGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45 REMOVING THE FRONT FORK LEGS . . . . . . . . . . . . . . . . . . . . . . . 4-48 DISASSEMBLING THE FRONT FORK LEGS . . . . . . . . . . . . . . . . . 4-49 CHECKING THE FRONT FORK LEGS . . . . . . . . . . . . . . . . . . . . . . . 4-50 ASSEMBLING THE FRONT FORK LEGS . . . . . . . . . . . . . . . . . . . . . 4-51 INSTALLING THE FRONT FORK LEGS . . . . . . . . . . . . . . . . . . . . . . 4-56

HANDLEBARS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58 REMOVING THE HANDLEBARS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-59 CHECKING THE HANDLEBARS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-59 INSTALLING THE HANDLEBARS . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60

STEERING HEAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63 UNDER BRACKET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63 REMOVING THE UNDER BRACKET . . . . . . . . . . . . . . . . . . . . . . . . . 4-65 CHECKING THE STEERING HEAD . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65 INSTALLING THE STEERING HEAD . . . . . . . . . . . . . . . . . . . . . . . . . 4-66

REAR SHOCK ABSORBER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . 4-68 HANDLING THE REAR SHOCK ABSORBER AND GAS

CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-70 DISPOSING OF A REAR SHOCK ABSORBER AND GAS

CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-70 REMOVING THE REAR SHOCK ABSORBER ASSEMBLY . . . . . 4-71 CHECKING THE REAR SHOCK ABSORBER ASSEMBLY AND

GAS CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71 CHECKING THE CONNECTING ROD AND RELAY ARMS . . . . . . 4-72 INSTALLING THE REAR SHOCK ABSORBER ASSEMBLY . . . . . 4-72

SWINGARM AND DRIVE CHAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-73 REMOVING THE SWINGARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-75 REMOVING THE DRIVE CHAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-76 CHECKING THE SWINGARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-76 CHECKING THE DRIVE CHAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-77 INSTALLING THE SWINGARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-79

CHAPTER 5

OVERHAULING THE ENGINE

ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 DRIVE SPROCKET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 EXHAUST PIPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 LEADS AND HOSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 INSTALLING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

CAMSHAFTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 CYLINDER HEAD COVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 CAMSHAFTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 REMOVING THE CAMSHAFTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 CHECKING THE CAMSHAFTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 CHECKING THE TIMING CHAIN, CAMSHAFT SPROCKETS,

AND TIMING CHAIN GUIDES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13 CHECKING THE TIMING CHAIN TENSIONER . . . . . . . . . . . . . . . . 5-13 INSTALLING THE CAMSHAFTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

CYLINDER HEAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18 REMOVING THE CYLINDER HEAD . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19 CHECKING THE CYLINDER HEAD . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19 INSTALLING THE CYLINDER HEAD . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

VALVES AND VALVE SPRINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21 REMOVING THE VALVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23 CHECKING THE VALVES AND VALVE GUIDES . . . . . . . . . . . . . . . 5-24 CHECKING THE VALVE SEATS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26 CHECKING THE VALVE SPRINGS . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28 CHECKING THE VALVE LIFTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29 INSTALLING THE VALVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29

STARTER CLUTCH AND GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . 5-31 STATOR COIL ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31 REMOVING THE GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33 REMOVING THE STARTER CLUTCH . . . . . . . . . . . . . . . . . . . . . . . . 5-34 CHECKING THE STARTER CLUTCH . . . . . . . . . . . . . . . . . . . . . . . . 5-35 INSTALLING THE STARTER CLUTCH . . . . . . . . . . . . . . . . . . . . . . . 5-35 INSTALLING THE GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-36

SHIFT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38 SHIFT SHAFT AND STOPPER LEVER . . . . . . . . . . . . . . . . . . . . . . . 5-38 CHECKING THE SHIFT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40 CHECKING THE STOPPER LEVER . . . . . . . . . . . . . . . . . . . . . . . . . 5-40 INSTALLING THE SHIFT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40

CRANKSHAFT POSITION SENSOR AND PICKUP ROTOR . . . . . . . 5-41 REMOVING THE PICKUP ROTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43 INSTALLING THE PICKUP ROTOR . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43

CLUTCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-45 CLUTCH COVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-45 CLUTCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-47 REMOVING THE CLUTCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-48 CHECKING THE FRICTION PLATES . . . . . . . . . . . . . . . . . . . . . . . . . 5-48 CHECKING THE CLUTCH PLATES . . . . . . . . . . . . . . . . . . . . . . . . . . 5-49 CHECKING THE CLUTCH SPRINGS . . . . . . . . . . . . . . . . . . . . . . . . 5-49 CHECKING THE CLUTCH HOUSING . . . . . . . . . . . . . . . . . . . . . . . . 5-50 CHECKING THE CLUTCH BOSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-50 CHECKING THE PRESSURE PLATE . . . . . . . . . . . . . . . . . . . . . . . . 5-50 CHECKING THE PULL LEVER SHAFT AND PULL ROD . . . . . . . 5-51 INSTALLING THE CLUTCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-51

OIL PAN AND OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-54 REMOVING THE OIL PAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-57 CHECKING THE OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-57 CHECKING THE RELIEF VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-58 CHECKING THE OIL DELIVERY PIPE AND OIL PIPE . . . . . . . . . 5-58 CHECKING THE OIL STRAINER . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-58 CHECKING THE OIL NOZZLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-58 ASSEMBLING THE OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-59 INSTALLING THE OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-59 INSTALLING THE OIL STRAINER . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-60 INSTALLING THE OIL PAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-60

CRANKCASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-61 DISASSEMBLING THE CRANKCASE . . . . . . . . . . . . . . . . . . . . . . . . 5-63 CHECKING THE CRANKCASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-64 CHECKING THE BEARINGS AND OIL SEALS . . . . . . . . . . . . . . . . 5-64 CHECKING THE TIMING CHAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-64 ASSEMBLING THE CRANKCASE . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-64

CONNECTING RODS AND PISTONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-66 REMOVING THE CONNECTING RODS AND PISTONS . . . . . . . . 5-67 REMOVING THE CRANKSHAFT ASSEMBLY . . . . . . . . . . . . . . . . . 5-68 CHECKING THE CYLINDER AND PISTON . . . . . . . . . . . . . . . . . . . 5-68 CHECKING THE PISTON RINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-69 CHECKING THE PISTON PINS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-70 CHECKING THE BIG END BEARINGS . . . . . . . . . . . . . . . . . . . . . . . 5-71 INSTALLING THE CONNECTING ROD AND PISTON . . . . . . . . . . 5-74

CRANKSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-78 CHECKING THE CRANKSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-79 CHECKING THE CRANKSHAFT JOURNAL BEARINGS . . . . . . . . 5-79 INSTALLING THE CRANKSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-82

TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-83 TRANSMISSION, SHIFT DRUM ASSEMBLY AND SHIFT

FORKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-83 REMOVING THE TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-89 CHECKING THE SHIFT FORKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-89 CHECKING THE SHIFT DRUM ASSEMBLY . . . . . . . . . . . . . . . . . . . 5-90 CHECKING THE TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-90 INSTALLING THE TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . . 5-91

CHAPTER 6

COOLING SYSTEM

RADIATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 CHECKING THE RADIATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3 INSTALLING THE RADIATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

OIL COOLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 CHECKING THE OIL COOLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6 INSTALLING THE OIL COOLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 CHECKING THE THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8 INSTALLING THE THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

WATER PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10 DISASSEMBLING THE WATER PUMP . . . . . . . . . . . . . . . . . . . . . . . 6-12 CHECKING THE WATER PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13 ASSEMBLING THE WATER PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13 INSTALLING THE WATER PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15

CHAPTER 7

FUEL INJECTION SYSTEM

FUEL INJECTION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 ECU’S SELF-DIAGNOSTIC FUNCTION . . . . . . . . . . . . . . . . . . . . . . 7-3 ALTERNATE INSTRUCTIONS OPERATION CONTROL

(FAIL-SAFE ACTION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4 FAIL-SAFE ACTIONS TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4 TROUBLESHOOTING CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5 DIAGNOSTIC MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6 TROUBLESHOOTING DETAILS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

THROTTLE BODIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27 CHECKING THE INJECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-31 CHECKING THE THROTTLE BODY . . . . . . . . . . . . . . . . . . . . . . . . . 7-31 CHECKING THE PRESSURE REGULATOR . . . . . . . . . . . . . . . . . . 7-32 CHECKING THE FUEL PUMP AND PRESSURE REGULATOR

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32 CHECKING AND ADJUSTING THE THROTTLE POSITION

SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-33

AIR INDUCTION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-35 AIR INJECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-35 AIR CUT-OFF VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-35 AIR INDUCTION SYSTEM DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . 7-36 CHECKING THE AIR INDUCTION SYSTEM . . . . . . . . . . . . . . . . . . 7-37

CHAPTER 8

ELECTRICAL

ELECTRICAL COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-1

CHECKING SWITCH CONTINUITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-3

CHECKING THE SWITCHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-4

CHECKING THE BULBS AND BULB SOCKETS . . . . . . . . . . . . . . . . .

8-5

TYPES OF BULBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-5

CHECKING THE CONDITION OF THE BULBS . . . . . . . . . . . . . . . .

8-6

CHECKING THE CONDITION OF THE BULB SOCKETS . . . . . . .

8-7

CHECKING THE LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-7

IGNITION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-8

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-8

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-9

ELECTRIC STARTING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-14

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-14

STARTING CIRCUIT CUT-OFF SYSTEM OPERATION . . . . . . . . .

8-15

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-16

STARTER MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-19

CHECKING THE STARTER MOTOR . . . . . . . . . . . . . . . . . . . . . . . . .

8-21

ASSEMBLING THE STARTER MOTOR . . . . . . . . . . . . . . . . . . . . . .

8-22

CHARGING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-23

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-23

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-24

LIGHTING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-26

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-26

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-28

CHECKING THE LIGHTING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . .

8-30

SIGNALING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-33

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-33

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-35

CHECKING THE SIGNALING SYSTEM . . . . . . . . . . . . . . . . . . . . . .

8-35

COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-42

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-42

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-43

FUEL PUMP SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-46 CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-46 FUEL PUMP SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-47 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48 CHECKING THE FUEL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50

SELF-DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-51 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-52

CHAPTER 9

TROUBLESHOOTING

STARTING FAILURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1 ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1 FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1 ELECTRICAL SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

INCORRECT ENGINE IDLING SPEED . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 ELECTRICAL SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

POOR MEDIUM-AND-HIGH-SPEED PERFORMANCE . . . . . . . . . . . . 9-2 ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

FAULTY GEAR SHIFTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3 SHIFTING IS DIFFICULT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3 SHIFT PEDAL DOES NOT MOVE . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3 JUMPS OUT OF GEAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

FAULTY CLUTCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3 CLUTCH SLIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3 CLUTCH DRAGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

OVERHEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4 ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4 COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4 FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4 CHASSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4 ELECTRICAL SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

OVERCOOLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4 COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

POOR BRAKING PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

FAULTY FRONT FORK LEGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5 LEAKING OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5 MALFUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

UNSTABLE HANDLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-5

FAULTY LIGHTING OR SIGNALING SYSTEM . . . . . . . . . . . . . . . . . . . 9-6 HEADLIGHT DOES NOT COME ON . . . . . . . . . . . . . . . . . . . . . . . . . 9-6 HEADLIGHT BULB BURNT OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6 TAIL/BRAKE LIGHT DOES NOT COME ON . . . . . . . . . . . . . . . . . . 9-6 TAIL/BRAKE LIGHT BULB BURNT OUT . . . . . . . . . . . . . . . . . . . . . 9-6 TURN SIGNAL DOES NOT COME ON . . . . . . . . . . . . . . . . . . . . . . . 9-6 TURN SIGNAL BLINKS SLOWLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6 TURN SIGNAL REMAINS LIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6 TURN SIGNAL BLINKS QUICKLY . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6 HORN DOES NOT SOUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

MOTORCYCLE IDENTIFICATION

EAS00014

GEN INFO

GENERAL INFORMATION

MOTORCYCLE IDENTIFICATION

 

EAS00017

 

VEHICLE IDENTIFICATION NUMBER

 

The vehicle identification number 1 is stamped

1

into the right side of the steering head pipe.

 

EAS00018

MODEL LABEL

The model label 1 is affixed to the frame. This information will be needed to order spare parts.

1-1

GEN

FEATURES INFO

EAS00896

FEATURES

OUTLINE OF FI SYSTEM

The main function of a fuel supply system is to provide fuel to the combustion chamber at the optimum air-fuel ratio in accordance with the engine operating conditions and the atmospheric temperature. In the conventional carburetor system, the air-fuel ratio of the mixture that is supplied to the combustion chamber is created by the volume of the intake air and the fuel that is metered by the jet used in the respective chamber.

Despite the same volume of intake air, the fuel volume requirement varies by the engine operating conditions, such as acceleration, deceleration, or operating under a heavy load. Carburetors that meter the fuel through the use of jets have been provided with various auxiliary devices, so that an optimum air-fuel ratio can be achieved to accommodate the constant changes in the operating conditions of the engine.

As the requirements for the engine to deliver more performance and cleaner exhaust gases increase, it becomes necessary to control the air-fuel ratio in a more precise and finely tuned manner. To accommodate this need, this model has adopted an electronically controlled fuel injection (FI) system, in place of the conventional carburetor system. This system can achieve an optimum air-fuel ratio required by the engine at all times by using a microprocessor that regulates the fuel injection volume according to the engine operating conditions detected by various sensors.

The adoption of the FI system has resulted in a highly precise fuel supply, improved engine response, better fuel economy, and reduced exhaust emissions. Furthermore, the air induction system (AI system) has been placed under computer control together with the FI system in order to realize cleaner exhaust gases.

1

Ignition coil

8

Intake

air

pressure

14

Spark plug

21

Engine trouble warn-

2

Air filter case

 

sensor

 

 

15

Cylinder identification

 

ing light

3

Intake

temperature

9

Throttle position sen-

 

sensor

22

Lean angle cut-off

 

sensor

 

 

sor

 

 

16

Pressure regulator

 

switch

4

Fuel delivery hose

10

Fuel injector

 

17

Battery

23

Air cut-off valve

5

Fuel tank

 

11

Catalytic converter

18

ECU

 

 

6

Fuel pump

12

Crankshaft

position

19

Atmospheric pressure

 

 

7

Fuel return hose

 

sensor

 

 

 

sensor

 

 

 

 

 

13

Coolant

temperature

20

Fuel injection system

 

 

 

 

 

 

sensor

 

 

 

relay

 

 

1-2

FEATURES

EAS00897

GEN INFO

FI SYSTEM

The fuel pump delivers fuel to the injector via the fuel filter. The pressure regulator maintains the fuel pressure that is applied to the injector at only 284 kPa (2.84 kg/cm2) higher than the intake manifold pressure. Accordingly, when the energizing signal from the ECU energizes the injector, the fuel passage opens, causing the fuel to be injected into the intake manifold only during the time the passage remains open. Therefore, the longer the length of time the injector is energized (injection duration), the greater the volume of fuel that is supplied. Conversely, the shorter the length of time the injector is energized (injection duration), the lesser the volume of fuel that is supplied.

The injection duration and the injection timing are controlled by the ECU. Signals that are input from the throttle position sensor, crankshaft position sensor, intake air pressure sensor, atmospheric pressure sensor, intake temperature sensor and coolant temperature sensor enable the ECU to determine the injection duration. The injection timing is determined through the signals from the crankshaft position sensor and the cylinder identification sensor. As a result, the volume of fuel that is required by the engine can be supplied at all times in accordance with the driving conditions.

Illustration is for reference only.

1

Fuel pump

6

Throttle position sen-

10

Coolant

temperature

A Fuel system

2

Pressure regulator

 

sor

 

sensor

 

B Air system

3

Fuel injector

7

Intake air pressure

11 Cylinder

identification

C Control system

4

Throttle body

 

sensor

 

sensor

 

 

5

Intake

temperature

8

ECU

12

Crankshaft position

 

 

sensor

 

9

Atmospheric pressure

 

sensor

 

 

 

 

 

 

sensor

 

 

 

 

1-3

GEN

FEATURES INFO

1Multi-function display

2“SELECT” button

3“RESET” button

4Engine trouble warning light

NOTE:

INSTRUMENT FUNCTION Multi-function display

The multi-function display is equipped with the following:

Sa speedometer (which shows the riding speed)

San odometer (which shows the total distance traveled)

Stwo tripmeters (which show the distance traveled since they were last set to zero)

Sa fuel reserve tripmeter (which shows the distance traveled since the fuel level warning light came on)

Sa clock

Sa self-diagnosis device

Sa display brightness and engine speed warning light control mode

S Be sure to turn the key to “ON” before using the “SELECT” and ”RESET” buttons.

SFor the U.K. only: To switch the speedometer and odometer/tripmeter display between kilometers and miles, press the “SELECT” button and “RESET” button together for at least two seconds.

Odometer and tripmeter modes

Pushing the “SELECT” button switches the display between the odometer mode “ODO” and the tripmeter modes “TRIP 1” and “TRIP 2” in the following order:

ODO ! TRIP 1 ! TRIP 2 ! ODO

If the fuel level warning light comes on, the odometer display will automatically change to the fuel reserve tripmeter mode “F-TRIP” and start counting the distance traveled from that point. In that case, pushing the “SELECT” button switches the display between the various tripmeter and odometer modes in the following order:

F-TRIP ! TRIP 1 ! TRIP 2 ! ODO ! F-TRIP

To reset a tripmeter, select it by pushing the “SELECT” button, and then push the “RESET” button for at least one second. If you do not reset the fuel reserve tripmeter manually, it will reset itself automatically and the display will return to the prior mode after refueling and traveling 5 km (3.1 mi).

Clock mode

Turn the key to “ON”.

To change the display to the clock mode, push the “SELECT” button for at least one second. To change the display back to the prior mode, push the “SELECT” button.

To set the clock:

1.Push the “SELECT” button and “RESET” button together for at least two seconds.

2.When the hour digits start flashing, push the “RESET” button to set the hours.

3.Push the “SELECT” button, and the minute digits will start flashing.

4.Push the “RESET” button to set the minutes.

5.Push the “SELECT” button and then release it to start the clock.

1-4

GEN

FEATURES INFO

1Shift timing indicator light

2“SELECT” button

3“RESET” button

Display brightness and shift timing indicator light control mode

This mode cycles through five control functions, allowing you to make the following settings in the order listed below.

1.Display brightness: This function allows you to adjust the brightness of the multi-function display to suit the outside lighting conditions.

2.Shift timing indicator light activity: This function allows you to choose whether or not the indicator light should be activated and whether it should blink or stay on when activated.

3.Shift timing indicator light activation: This function allows you to select the shift timing at which the indicator light will be activated.

4.Shift timing indicator light deactivation: This function allows you to select the engine speed at which the indicator light will be deactivated.

5.Shift timing indicator light brightness: This function allows you to adjust the brightness of the indicator light to suit your preference.

NOTE:

STo make any settings in this mode, you have to cycle through all of its functions. However, if the key is turned to “OFF” or engine is started before completing the procedure, only the settings made before the “SELECT” button was last pushed will be applied.

SIn this mode, the multi-function display shows the current setting for each function (except the shift timing indicator light activity function).

To adjust the display brightness

1.Turn the key to “OFF”.

2.Push and hold the “SELECT” button.

3.Turn the key to “ON”, and then, after five seconds, release the “SELECT” button.

4.Push the “RESET” button to select the desired display brightness level.

5.Push the “SELECT” button to confirm the selected display brightness level. The control mode changes to the shift timing indicator light activity function.

To set the shift timing indicator light activity function

1. Push the “RESET” button to select one of the following indicator light activity settings:

a. The indicator light will stay on when activated. (This setting is selected when the indicator light stays on.)

b. The indicator light will flash when activated. (This setting is selected when the indicator light flashes four times per second.)

c. The indicator light is deactivated; in other words, it will not come on or flash. (This setting is selected when the indicator light flashes once every two seconds.)

2.Push the “SELECT” button to confirm the selected indicator light activity. The control mode changes to the shift timing indicator light activation function.

1-5

FEATURES

To set the shift timing indicator light activation function

NOTE:

GEN INFO

SThe indicator light activation function can be set between 10,000 and 16,000 r/min.

SFrom 10,000 r/min to 12,000 r/min, the indicatar light can be set in increments of 500 r/min.

SFrom 12,000 r/min to 16,000 r/min, the indicatar light can be set in increments of 200 r/min.

1.Push the “RESET” button to select the desired engine speed for activating the indicator light.

2.Push the “SELECT” button to confirm the selected engine speed.

The control mode changes to the shift timing indicator light deactivation function.

To set the shift timing indicator light deactivation function

NOTE:

SThe indicator light deactivation function can be set between 7,000 and 12,000 r/min in increments of 500 r/min.

SBe sure to set the deactivation function to a higher engine speed than for the activation function, otherwise the shift timing indicator light will remain deactivated.

1.Push the “RESET” button to select the desired engine speed for deactivating the indicator light.

2.Push the “SELECT” button to confirm the selected engine speed.

The control mode changes to the shift timing indicator light brightness function.

To adjust the shift timing indicator light brightness

1.Push the “RESET” button to select the desired indicator light brightness level.

2.Push the “SELECT” button to confirm the selected indicator light brightness level. The multi-function display will return to the odometer, tripmeter or clock mode.

1-6

lip

lip spring

oil

GEN

IMPORTANT INFORMATION INFO

EAS00020

IMPORTANT INFORMATION

PREPARATION FOR REMOVAL AND

DISASSEMBLY

1.Before removal and disassembly, remove all dirt, mud, dust and foreign material.

2.Use only the proper tools and cleaning equipment.

Refer to the “SPECIAL TOOLS”.

3.When disassembling, always keep mated parts together. This includes gears, cylinders, pistons and other parts that have been “mated” through normal wear. Mated parts must always be reused or replaced as an assembly.

4.During disassembly, clean all of the parts and place them in trays in the order of disassembly. This will speed up assembly and allow for the correct installation of all parts.

5.Keep all parts away from any source of fire.

EAS00021

REPLACEMENT PARTS

Use only genuine Yamaha parts for all replacements. Use oil and grease recommended by Yamaha for all lubrication jobs. Other brands may be similar in function and appearance, but inferior in quality.

EAS00022

GASKETS, OIL SEALS AND O-RINGS

1.When overhauling the engine, replace all gaskets, seals and O-rings. All gasket surfaces, oil seal lips and O-rings must be cleaned.

2.During reassembly, properly oil all mating

grease

parts and bearings and lubricate the oil seal

 

 

lips with grease.

1-7

IMPORTANT INFORMATION

EAS00023

GEN INFO

LOCK WASHERS/PLATES AND COTTER PINS

After removal, replace all lock washers/plates 1 and cotter pins. After the bolt or nut has been tightened to specification, bend the lock tabs along a flat of the bolt or nut.

EAS00024

BEARINGS AND OIL SEALS

Install bearings and oil seals so that the manufacturer’s marks or numbers are visible. When installing oil seals, lubricate the oil seal lips with a light coat of lithium-soap-based grease. Oil bearings liberally when installing, if appropriate.

1 Oil seal

CAUTION:

Do not spin the bearing with compressed air because this will damage the bearing surfaces.

1 Bearing

EAS00025

CIRCLIPS

Before reassembly, check all circlips carefully and replace damaged or distorted circlips. Always replace piston pin clips after one use. When installing a circlip 1 , make sure the sharp-edged corner 2 is positioned opposite the thrust 3 that the circlip receives.

4 Shaft

1-8

GEN

CHECKING THE CONNECTIONS INFO

EAS00026

CHECKING THE CONNECTIONS

Check the leads, couplers, and connectors for stains, rust, moisture, etc.

1.Disconnect: S lead

S coupler

S connector

2.Check:

Slead

Scoupler

Sconnector

Moisture ! Dry with an air blower. Rust/stains ! Connect and disconnect several times.

3.Check:

Sall connections

Loose connection ! Connect properly.

NOTE:

If the pin 1 on the terminal is flattened, bend it up.

4. Connect:

Slead

Scoupler

Sconnector

NOTE:

Make sure all connections are tight.

5. Check:

Scontinuity

(with the pocket tester)

Pocket tester 90890-03112, YU-3112

NOTE:

SIf there is no continuity, clean the terminals.

SWhen checking the wire harness, perform steps (1) to (3).

SAs a quick remedy, use a contact revitalizer available at most part stores.

1-9

SPECIAL TOOLS

EAS00027

GEN INFO

SPECIAL TOOLS

The following special tools are necessary for complete and accurate tune-up and assembly. Use only the appropriate special tools as this will help prevent damage caused by the use of inappropriate tools or improvised techniques. Special tools, part numbers or both may differ depending on the country. When placing an order, refer to the list provided below to avoid any mistakes.

NOTE:

SFor U.S.A. and Canada, use part number starting with “YM-”, “YU-”, or “ACC-”.

SFor others, use part number starting with “90890-”.

Tool No.

Tool name/Function

Illustration

 

 

 

Flywheel puller

Flywheel puller

 

90890-01362

Adapter

 

YU-33270-B

 

 

 

Adapter

This tool is used to remove the generator ro-

 

90890-04089

 

tor.

 

YM-33282

 

 

 

 

 

Sheave holder

 

90890-01701

This tool is used to hold the generator rotor

 

YS-01880-A

 

when removing or installing the generator ro-

 

 

 

 

tor bolt or pickup coil rotor bolt.

 

 

 

 

 

Piston pin puller

 

90890-01304

 

 

YU-01304

 

 

 

This tool is used to remove the piston pins.

 

 

 

 

Radiator cap

Radiator cap tester

 

tester

Adapter

 

90890-01325

 

YU-24460-01

 

 

Adapter

These tools are used to check the cooling

 

90890-01352

 

system.

 

YU-33984

 

 

 

 

 

Steering nut wrench

 

90890-01403

 

 

YU-33975

This tool is used to loosen or tighten the steer-

 

 

 

 

ing stem ring nuts.

 

 

 

 

 

Damper rod holder

 

90890-01473

This tool is used to hold the damper rod as-

 

 

sembly when loosening or tightening the

 

 

damper rod assembly bolt.

 

 

 

 

Pivot shaft

Pivot shaft wrench

 

wrench

Pivot shaft wrench adapter

 

90890-01471

 

YM-01471

 

 

Pivot shaft wrench

This tool is used to loosen or tighten the pivot

 

adapter

 

adjust bolt and engine mount adjust bolt.

 

90890-01476

 

 

 

 

1-10

 

SPECIAL TOOLS

 

 

GEN

 

 

 

 

INFO

 

 

 

 

 

Tool No.

Tool name/Function

 

Illustration

 

 

 

 

 

 

 

 

Oil filter wrench

 

 

 

 

 

90890-01426

 

 

 

 

 

 

YU-38411

This tool is needed to loosen or tighten the oil

 

 

 

 

 

 

 

 

 

 

 

 

filter cartridge.

 

 

 

 

 

 

 

 

 

 

 

 

Rod puller

Rod puller

 

 

 

 

 

90890-01437

Rod puller attachment

 

 

 

 

 

YM-01437

 

 

 

 

 

 

Rod puller

These tools are used to pull up the front fork

 

 

 

 

 

attachment

 

 

 

 

 

90890-01436

damper rod.

 

 

 

 

 

Fork seal driver

Fork seal driver weight

 

 

 

 

 

90890-01367

Fork seal driver attachment

 

 

 

 

 

YM-33963

 

 

 

 

 

Fork seal driver

 

 

 

 

 

 

attachment

This tool is used to install the front fork’s oil

 

 

 

 

 

90890-01374

 

 

 

 

 

seal and dust seal.

 

 

 

 

 

YM-8020-A

 

 

 

 

 

 

 

 

 

 

 

 

 

Vacuum gauge

 

 

 

 

 

Vacuum gauge

 

 

 

 

 

 

90890-03094

 

 

 

 

 

 

YU-08030

This gauge is used to synchronize the carbu-

 

 

 

 

 

 

retors.

 

 

 

 

 

 

 

 

 

 

 

 

Compression

Compression gauge

 

 

 

 

 

gauge

Adapter

 

 

 

 

 

90890-03081

 

 

 

 

 

 

YU-33223

These tools are used to measure engine

 

 

 

 

 

Adapter

 

 

 

 

 

90890-04136

compression.

 

 

 

 

 

 

 

 

 

 

 

 

 

Pocket tester

 

 

 

 

 

90890-03112

 

 

 

 

 

 

YU-3112

This tool is used to check the electrical sys-

 

 

 

 

 

 

 

 

 

 

 

 

tem.

 

 

 

 

 

 

 

 

 

 

 

 

Oil pressure

Oil pressure gauge

 

 

 

 

 

gauge

Adapter

 

 

 

 

 

90890-03153

 

 

 

 

 

 

YU-03153

These tools are used to measure engine oil

 

 

 

 

 

Adapter

 

 

 

 

 

90890-03139

pressure.

 

 

 

 

 

 

Digital circuit tester

 

 

 

 

 

90890-03174

 

 

 

 

 

 

 

This tool is used to check the electrical sys-

 

 

 

 

 

 

tem.

 

 

 

 

 

 

 

 

 

 

 

 

 

Fuel pressure adapter

 

 

 

 

 

90890-03176

 

 

 

 

 

 

YM-03176

 

 

 

 

 

 

 

This tool is needed to measure fuel pressure.

 

 

 

 

 

 

 

 

 

 

 

 

 

Pressure gauge

 

 

 

 

 

90890-03153

 

 

 

 

 

 

YU-03153

 

 

 

 

 

 

 

This tool used is to measure fuel pressure.

 

 

 

 

 

1-11

 

SPECIAL TOOLS

 

 

GEN

 

 

 

 

INFO

 

 

 

 

 

Tool No.

Tool name/Function

 

Illustration

 

 

 

 

 

 

 

 

Piston ring compressor

 

 

 

 

 

90890-04044

 

 

 

 

 

 

YM-04044

This tool is used to compress piston rings

 

 

 

 

 

 

 

 

 

 

 

 

when installing the cylinder.

 

 

 

 

 

 

 

 

 

 

 

 

 

Carburetor angle driver

 

 

 

 

 

90890-03158

 

 

 

 

 

 

 

This tool is used to turn the pilot screw when

 

 

 

 

 

 

adjusting the engine idling speed.

 

 

 

 

 

 

 

 

 

 

 

 

Valve spring

Valve spring compressor

 

 

 

 

 

compressor

Attachment

 

 

 

 

 

90890-04019

 

 

 

 

 

YM-04019

 

 

 

 

 

 

Attachment

These tools are used to remove or install the

 

 

 

 

 

90890-04108

 

 

 

 

 

valve assemblies.

 

 

 

 

 

YM-01253

 

 

 

 

 

 

 

 

 

 

 

 

Middle driven shaft

Middle driven shaft bearing driver

 

 

 

 

 

bearing driver

Mechanical seal installer

 

 

 

 

 

90890-04058

 

 

 

 

 

YM-4058

 

 

 

 

 

 

Mechanical seal

These tools are used to install the water pump

 

 

 

 

 

installer

 

 

 

 

 

90890-04078

seal.

 

 

 

 

 

YM-33221

 

 

 

 

 

 

Clutch holding tool

 

 

 

 

 

90890-04086

This tool is used to hold the clutch boss

 

 

 

 

 

YM-91042

 

 

 

 

 

when removing or installing the clutch boss

 

 

 

 

 

 

 

 

 

 

 

 

nut.

 

 

 

 

 

 

 

 

 

 

 

 

 

Valve lapper

 

 

 

 

 

90890-04101

 

 

 

 

 

 

 

This tool is needed to remove and install

 

 

 

 

 

 

the valve lifter.

 

 

 

 

 

 

 

 

 

 

 

 

 

Valve guide remover (φ4)

 

 

 

 

 

90890-04111

 

 

 

 

 

 

 

This tool is used to remove or install the valve

 

 

 

 

 

 

guides.

 

 

 

 

 

 

 

 

 

 

 

 

 

Valve guide installer (φ4)

 

 

 

 

 

90890-04112

 

 

 

 

 

 

 

This tool is used to install the valve guides.

 

 

 

 

 

 

 

 

 

 

 

 

 

Valve guide reamer (φ4)

 

 

 

 

 

90890-04113

 

 

 

 

 

 

YM-04113

This tool is used to rebore the new valve

 

 

 

 

 

 

 

 

 

 

 

 

guides.

 

 

 

 

 

 

 

 

 

 

 

 

 

Ignition checker

 

 

 

 

 

90890-06754

 

 

 

 

 

 

YM-34487

This tool is used to check the ignition system

 

 

 

 

 

 

 

 

 

 

 

 

components.

 

 

 

 

 

1-12

 

SPECIAL TOOLS

 

 

GEN

 

 

 

 

INFO

 

 

 

 

 

Tool No.

Tool name/Function

 

Illustration

 

 

 

 

 

 

 

 

Vacuum/pressure pump gauge set

 

 

 

 

 

90890-06756

 

 

 

 

 

 

YB-35956

This tool used to measure the vacuum pres-

 

 

 

 

 

 

 

 

 

 

 

 

sure.

 

 

 

 

 

 

 

 

 

 

 

 

 

Yamaha bond No. 1215

 

 

 

 

 

90890-85505

 

 

 

 

 

 

ACC-11001-

 

 

 

 

 

 

05-01

This bond is used to seal two mating surfaces

 

 

 

 

 

 

(e.g., crankcase mating surfaces).

 

 

 

 

 

1-13

Loading...
+ 404 hidden pages