Yamaha FZ6-SS User manual

EAS00010
FZ6-SS/FZ6-SSC
SERVICE MANUAL
2003 by Yamaha Motor
Corporation, U.S.A.
First edition, November 2003
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-11616-17-50

NOTE:
WARNING
CAUTION:
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 manu-
al. 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 ve-
hicle 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 ve-
hicle 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 sig-
nificant changes in specifications or procedures will be forwarded to all authorized Yamaha dealers
and will appear in future editions of this manual where applicable.
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.
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 mo-
torcycle.
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.

12
4
8
3
5
6
7
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) ap-
pears.
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.

22
1
3
5
7
9
2
4
8
6
24 25
2321
19 2018
16 1715
1413
11 12
10
GEN
INFO SPEC
ENG
FI ELEC
COOL
CHK
ADJ
TRBL
SHTG
CHAS
EAS00008
SYMBOLS
The following symbols are not relevant to every
vehicle.
Symbols 1to 9indicate 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.
10 Serviceable with engine mounted
11 Filling fluid
12 Lubricant
13 Special tool
14 Tightening torque
15 Wear limit, clearance
16 Engine speed
17 Electrical data
Symbols 18 to 23 in the exploded diagrams indi-
cate the types of lubricants and lubrication
points.
18 Engine oil
19 Gear oil
20 Molybdenum-disulfide oil
21 Wheel-bearing grease
22 Lithium-soap- based grease
23 Molybdenum-disulfide grease
Symbols 24 to 25 in the exploded diagrams indi-
cate the following.
24 Apply locking agent (LOCTITE)
25 Replace the part

GENERAL INFORMATION
SPECIFICATIONS
PERIODIC CHECKS AND
ADJUSTMENTS
CHASSIS
ENGINE
COOLING SYSTEM
FUEL INJECTION SYSTEM
ELECTRICAL SYSTEM
TROUBLESHOOTING
GEN
INFO 1
SPEC 2
3
ENG
4
COOL
5
FI
6
CHAS
7
ELEC 8
TRBL
SHTG 9
CHK
ADJ
EAS00012
TABLE OF CONTENTS

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 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PREPARATION FOR REMOVAL AND DISASSEMBLY 1-6. . . . . . . . .
REPLACEMENT PARTS 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GASKETS, OIL SEALS AND O-RINGS 1-6. . . . . . . . . . . . . . . . . . . . . . .
LOCK WASHERS /PLATES AND COTTER PINS 1-7. . . . . . . . . . . . . .
BEARINGS AND OIL SEALS 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCLIPS 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CONNECTIONS 1-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS 1-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 2
SPECIFICATIONS
GENERAL SPECIFICATIONS 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE SPECIFICATIONS 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHASSIS SPECIFICATIONS 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL SPECIFICATIONS 2-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONVERSION TABLE 2-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL TIGHTENING TORQUE SPECIFICATIONS 2-17. . . . . . . . . . . .
TIGHTENING TORQUES 2-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE TIGHTENING TORQUES 2-18. . . . . . . . . . . . . . . . . . . . . . . . . . .
CHASSIS TIGHTENING TORQUES 2-21. . . . . . . . . . . . . . . . . . . . . . . . . .
LUBRICATION POINTS AND LUBRICANT TYPES 2-23. . . . . . . . . . . . . . .
ENGINE 2-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHASSIS 2-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLING SYSTEM DIAGRAMS 2-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ENGINE OIL LUBRICATION CHART 2-29. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LUBRICATION DIAGRAMS 2-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CABLE ROUTING 2-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . .
SEAT 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL TANK 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE FUEL TANK 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE FUEL PUMP 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE FUEL PUMP 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE FUEL TANK 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COWLINGS 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR FILTER CASE 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BATTERY BOX AND BATTERY BOX BRACKET 3-10. . . . . . . . . . . . . . . . .
ENGINE 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE VALVE CLEARANCE 3-11. . . . . . . . . . . . . . . . . . . . . .
SYNCHRONIZING THE THROTTLE BODIES 3-17. . . . . . . . . . . . . . . . .
ADJUSTING THE ENGINE IDLING SPEED 3-19. . . . . . . . . . . . . . . . . . .
ADJUSTING THE THROTTLE CABLE FREE PLAY 3-20. . . . . . . . . . . .
CHECKING THE SPARK PLUGS 3-22. . . . . . . . . . . . . . . . . . . . . . . . . . . .
MEASURING THE COMPRESSION PRESSURE 3-23. . . . . . . . . . . . . .
CHECKING THE ENGINE OIL LEVEL 3-26. . . . . . . . . . . . . . . . . . . . . . . .
CHANGING THE ENGINE OIL 3-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MEASURING THE ENGINE OIL PRESSURE 3-29. . . . . . . . . . . . . . . . .
ADJUSTING THE CLUTCH CABLE FREE PLAY 3-31. . . . . . . . . . . . . . .
CLEANING THE AIR FILTER ELEMENT 3-32. . . . . . . . . . . . . . . . . . . . . .
CHECKING THE THROTTLE BODY JOINTS 3-33. . . . . . . . . . . . . . . . . .
CHECKING THE FUEL AND BREATHER HOSES 3-34. . . . . . . . . . . . .
CHECKING THE CRANKCASE BREATHER HOSE 3-34. . . . . . . . . . . .
CHECKING THE EXHAUST SYSTEM 3-35. . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE COOLANT LEVEL 3-36. . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE COOLING SYSTEM 3-37. . . . . . . . . . . . . . . . . . . . . . . .
CHANGING THE COOLANT 3-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CHASSIS 3-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE FRONT BRAKE 3-41. . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE REAR BRAKE 3-42. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE BRAKE FLUID LEVEL 3-43. . . . . . . . . . . . . . . . . . . . . .
CHECKING THE FRONT AND REAR BRAKE PADS 3-44. . . . . . . . . . .
ADJUSTING THE REAR BRAKE LIGHT SWITCH 3-45. . . . . . . . . . . . .
CHECKING THE FRONT AND REAR BRAKE HOSES 3-45. . . . . . . . .
BLEEDING THE HYDRAULIC BRAKE SYSTEM 3-46. . . . . . . . . . . . . . .
ADJUSTING THE SHIFT PEDAL 3-47. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE DRIVE CHAIN SLACK 3-48. . . . . . . . . . . . . . . . . . . . .
LUBRICATING THE DRIVE CHAIN 3-49. . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND ADJUSTING THE STEERING HEAD 3-50. . . . . . . . .
CHECKING THE FRONT FORK 3-52. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE REAR SHOCK ABSORBER ASSEMBLY 3-53. . . . .
CHECKING THE TIRES 3-53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE WHEELS 3-56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND LUBRICATING THE CABLES 3-57. . . . . . . . . . . . . . .
LUBRICATING THE LEVERS AND PEDALS 3-57. . . . . . . . . . . . . . . . . .
LUBRICATING THE SIDESTAND 3-57. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LUBRICATING THE CENTERSTAND 3-57. . . . . . . . . . . . . . . . . . . . . . . .
LUBRICATING THE REAR SUSPENSION 3-58. . . . . . . . . . . . . . . . . . . .
ELECTRICAL SYSTEM 3-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND CHARGING THE BATTERY 3-59. . . . . . . . . . . . . . . . .
CHECKING THE FUSES 3-65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING THE HEADLIGHT BULBS 3-67. . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE HEADLIGHT BEAMS 3-68. . . . . . . . . . . . . . . . . . . . . .
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 4-19. . . . . . . . . . . . . . . . . . . . .
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. .
CHECKING THE FRONT AND REAR BRAKE MASTER
CYLINDERS 4-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DISASSEMBLING THE REAR BRAKE MASTER CYLINDER 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 4-48. . . . . . . . . . . . . . . . .
CHECKING THE FRONT FORK LEGS 4-50. . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLING THE FRONT FORK LEGS 4-51. . . . . . . . . . . . . . . . . . . . .
INSTALLING THE FRONT FORK LEGS 4-54. . . . . . . . . . . . . . . . . . . . . .
HANDLEBAR 4-55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE HANDLEBAR 4-56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE HANDLEBAR 4-56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE HANDLEBAR 4-57. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEERING HEAD 4-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UNDER BRACKET 4-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE UNDER BRACKET 4-61. . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE STEERING HEAD 4-61. . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE STEERING HEAD 4-62. . . . . . . . . . . . . . . . . . . . . . . . .
REAR SHOCK ABSORBER ASSEMBLY 4-64. . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE REAR SHOCK ABSORBER ASSEMBLY 4-65. . . . .
HANDLING THE REAR SHOCK ABSORBER 4-66. . . . . . . . . . . . . . . . .
DISPOSING OF A REAR SHOCK ABSORBER 4-66. . . . . . . . . . . . . . . .
CHECKING THE REAR SHOCK ABSORBER ASSEMBLY 4-66. . . . . .
INSTALLING THE REAR SHOCK ABSORBER ASSEMBLY 4-67. . . . .

SWINGARM AND DRIVE CHAIN 4-68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE SWINGARM 4-70. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE DRIVE CHAIN 4-71. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE SWINGARM 4-71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE SWINGARM 4-72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE DRIVE CHAIN 4-73. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 5
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 5-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CAMSHAFTS 5-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE TIMING CHAIN, CAMSHAFT SPROCKETS,
AND TIMING CHAIN GUIDES 5-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE TIMING CHAIN TENSIONER 5-14. . . . . . . . . . . . . . . .
INSTALLING THE CAMSHAFTS 5-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CYLINDER HEAD 5-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE CYLINDER HEAD 5-20. . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CYLINDER HEAD 5-20. . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE CYLINDER HEAD 5-21. . . . . . . . . . . . . . . . . . . . . . . . .
VALVES AND VALVE SPRINGS 5-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE VALVES 5-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE VALVES AND VALVE GUIDES 5-25. . . . . . . . . . . . . . .
CHECKING THE VALVE SEATS 5-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE VALVE SPRINGS 5-29. . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE VALVE LIFTERS 5-30. . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE VALVES 5-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STARTER CLUTCH AND GENERATOR 5-32. . . . . . . . . . . . . . . . . . . . . . . . .
STATOR COIL ASSEMBLY 5-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE GENERATOR 5-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE STARTER CLUTCH 5-35. . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE STARTER CLUTCH 5-36. . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE STARTER CLUTCH 5-36. . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE GENERATOR 5-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SHIFT SHAFT 5-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SHIFT SHAFT AND STOPPER LEVER 5-39. . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE SHIFT SHAFT 5-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE STOPPER LEVER 5-41. . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE SHIFT SHAFT 5-41. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CRANKSHAFT POSITION SENSOR AND PICKUP ROTOR 5-42. . . . . . .
REMOVING THE PICKUP ROTOR 5-44. . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE PICKUP ROTOR 5-44. . . . . . . . . . . . . . . . . . . . . . . . . .
CLUTCH 5-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLUTCH COVER 5-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLUTCH 5-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE CLUTCH 5-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE FRICTION PLATES 5-49. . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CLUTCH PLATES 5-50. . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CLUTCH SPRINGS 5-50. . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CLUTCH HOUSING 5-51. . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CLUTCH BOSS 5-51. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE PRESSURE PLATE 5-51. . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE PULL LEVER SHAFT AND PULL ROD 5-52. . . . . . .
INSTALLING THE CLUTCH 5-52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OIL PAN AND OIL PUMP 5-55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE OIL PAN 5-58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE OIL PUMP 5-58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE RELIEF VALVE 5-59. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE OIL DELIVERY PIPE AND OIL PIPE 5-59. . . . . . . . .
CHECKING THE OIL STRAINER 5-59. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE OIL NOZZLES 5-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLING THE OIL PUMP 5-60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE OIL PUMP 5-60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE OIL STRAINER 5-61. . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE OIL PAN 5-61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CRANKCASE 5-62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DISASSEMBLING THE CRANKCASE 5-64. . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CRANKCASE 5-65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE BEARINGS AND OIL SEALS 5-65. . . . . . . . . . . . . . . .
CHECKING THE TIMING CHAIN 5-65. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLING THE CRANKCASE 5-65. . . . . . . . . . . . . . . . . . . . . . . . . . .

CONNECTING RODS AND PISTONS 5-67. . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE CONNECTING RODS AND PISTONS 5-68. . . . . . . .
REMOVING THE CRANKSHAFT ASSEMBLY 5-69. . . . . . . . . . . . . . . . .
CHECKING THE CYLINDER AND PISTON 5-69. . . . . . . . . . . . . . . . . . .
CHECKING THE PISTON RINGS 5-70. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE PISTON PINS 5-71. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE BIG END BEARINGS (except for CAL) 5-73. . . . . . . .
CHECKING THE BIG END BEARINGS (for CAL) 5-76. . . . . . . . . . . . . .
INSTALLING THE CONNECTING ROD AND PISTON
(except for CAL) 5-80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE CONNECTING ROD AND PISTON
(for CAL) 5-83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CRANKSHAFT 5-87. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CRANKSHAFT 5-88. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CRANKSHAFT JOURNAL BEARINGS 5-88. . . . . . . .
INSTALLING THE CRANKSHAFT 5-91. . . . . . . . . . . . . . . . . . . . . . . . . . . .
TRANSMISSION 5-92. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TRANSMISSION, SHIFT DRUM ASSEMBLY AND SHIFT
FORKS 5-92. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE TRANSMISSION 5-98. . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE SHIFT FORKS 5-98. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE SHIFT DRUM ASSEMBLY 5-99. . . . . . . . . . . . . . . . . . .
CHECKING THE TRANSMISSION 5-99. . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE TRANSMISSION 5-100. . . . . . . . . . . . . . . . . . . . . . . . . .
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 6-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE OIL COOLER 6-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THERMOSTAT 6-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE THERMOSTAT 6-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE THERMOSTAT 6-10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
WATER PUMP 6-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DISASSEMBLING THE WATER PUMP 6-13. . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE WATER PUMP 6-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLING THE WATER PUMP 6-14. . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE WATER PUMP 6-16. . . . . . . . . . . . . . . . . . . . . . . . . . . .

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 7-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSTIC MODE 7-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING DETAILS 7-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THROTTLE BODIES 7-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INJECTORS 7-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE INJECTORS 7-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE THROTTLE BODIES 7-28. . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE FUEL PUMP AND PRESSURE REGULATOR
OPERATION 7-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND ADJUSTING THE THROTTLE POSITION
SENSOR 7-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR INDUCTION SYSTEM 7-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR INJECTION 7-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR CUT-OFF VALVE 7-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR INDUCTION SYSTEM DIAGRAMS 7-33. . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE AIR INDUCTION SYSTEM 7-34. . . . . . . . . . . . . . . . . .
CHAPTER 8
ELECTRICAL SYSTEM
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 8-5. . . . . . . . . . . . . . . .
CHECKING THE CONDITION OF THE BULB SOCKETS 8-6. . . . . . .
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 8-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LIGHTING SYSTEM 8-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE LIGHTING SYSTEM 8-31. . . . . . . . . . . . . . . . . . . . . . . .
SIGNALING SYSTEM 8-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE SIGNALING SYSTEM 8-36. . . . . . . . . . . . . . . . . . . . . .
COOLING SYSTEM 8-43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL PUMP SYSTEM 8-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL PUMP SYSTEM 8-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE FUEL PUMP 8-51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SELF-DIAGNOSIS 8-52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1
1
MOTORCYCLE IDENTIFICATION GEN
INFO
EAS00014
GENERAL INFORMATION
MOTORCYCLE IDENTIFICATION
EAS00017
VEHICLE IDENTIFICATION NUMBER
The vehicle identification number 1is stamped
into the right side of the steering head pipe.
EAS00018
MODEL LABEL
The model label 1is affixed to the frame. This
information will be needed to order spare parts.

1-2
FEATURES GEN
INFO
7Intake air pressure
sensor
8Throttle position sen-
sor
9Fuel injector
10 Catalytic converter
11 Crankshaft position
sensor
12 Coolant temperature
sensor
13 Spark plug
14 Pressure regulator
15 Battery
16 ECU
17 Fuel injection system
relay
18 Engine trouble warn-
ing light
19 Lean angle cut-off
switch
1Ignition coil
2Air filter case
3Intake air temperature
sensor
4Fuel delivery hose
5Fuel tank
6Fuel pump
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 carburetor.
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 me-
ter the fuel through the use of jets have been provided with various auxiliary devices, so that an opti-
mum 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 accom-
modate 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 re-
quired 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 sys-
tem) has been placed under computer control together with the FI system in order to realize cleaner
exhaust gases.

1-3
FEATURES GEN
INFO
Illustration is for reference only.
6Throttle position sen-
sor
7Intake air pressure
sensor
8ECU
9Coolant temperature
sensor
10 Crankshaft position
sensor
A Fuel system
B Control system
1Fuel pump
2Pressure regulator
3Fuel injector
4Throttle body
5Intake air temperature
sensor
EAS00897
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 250 kPa (2.5 kg/cm2). 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. Con-
versely, the shorter the length of time the injector is energized (injection duration), the lesser the vol-
ume 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, intake temperature
sensor and coolant temperature sensor enable the ECU to determine the injection duration. The injec-
tion timing is determined through the signals from the crankshaft position sensor. As a result, the vol-
ume of fuel that is required by the engine can be supplied at all times in accordance with the driving
conditions.

1-4
FEATURES GEN
INFO
1 Multi-function display
2 “SELECT” button
3 “RESET” button
4 Engine 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 bottom segment
of the fuel meter started flashing)
Sa tachometer (which shows the engine
speed)
Sa fuel meter
Sa water temperature
Sa clock
Sa intake air temperature
Sa self-diagnosis device
SBe 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 for at least two seconds.
Odometer, tripmeter and tachometer modes
Pushing the “SELECT” button switches the display between the odometer mode “ODO” and the trip-
meter modes “TRIP 1” and “TRIP 2” and the tachometer mode “E” is the following order:
ODO !TRIP 1 !TRIP 2 !(TRIP F) !E !ODO
When approximately 3.6 L of fuel remain in the fuel tank, the bottom segment of the fuel meter will start
flashing, and the odometer display will automatically change to the fuel reserve tripmeter mode “TRIP
F” 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:
TRIP-F !E !ODO !TRIP 1 !TRIP 2 !TRIP F
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).
Tachometer mode
Displays the digital indication of the engine speed on the odometer section.
Air intake temperature indicator.
When “ODO” is displayed, pressing the “RESET” for a long time allows the indicator to switch displays
between Clock and Air intake temperature. (It activates the clock indication when the main switch is
turned OFF.)
In the Co adjustment mode, the indication automatically changes from clock (Air intake temperature) to
the engine speed.