Page 8 of 457

LUBRICATION DIAGRAMS2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CABLE ROUTING2-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 3
PERIODIC CHECKS AND ADJUSTMENTS
INTRODUCTION3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PERIODIC MAINTENANCE CHART FOR THE EMISSION
CONTROL SYSTEM3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL MAINTENANCE AND LUBRICATION CHART3-1 . . . . . . . . .
SEATS3-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL TANK3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE FUEL TANK 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE FUEL PUMP 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE FUEL PUMP 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE FUEL TANK 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COWLINGS3-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRONT COWLING AND SIDE COWLINGS 3-7. . . . . . . . . . . . . . . . . . .
REAR COWLING 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVAL 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR FILTER CASE3-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE3-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE VALVE CLEARANCE 3-11. . . . . . . . . . . . . . . . . . . . . .
SYNCHRONIZING THE THROTTLE BODIES 3-17. . . . . . . . . . . . . . . . .
ADJUSTING THE EXHAUST GAS VOLUME 3-19. . . . . . . . . . . . . . . . . .
ADJUSTING THE ENGINE IDLING SPEED 3-21. . . . . . . . . . . . . . . . . . .
ADJUSTING THE THROTTLE CABLE FREE PLAY 3-22. . . . . . . . . . . .
CHECKING THE SPARK PLUGS 3-23. . . . . . . . . . . . . . . . . . . . . . . . . . . .
MEASURING THE COMPRESSION PRESSURE 3-24. . . . . . . . . . . . . .
CHECKING THE ENGINE OIL LEVEL 3-26. . . . . . . . . . . . . . . . . . . . . . . .
CHANGING THE ENGINE OIL 3-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MEASURING THE ENGINE OIL PRESSURE 3-29. . . . . . . . . . . . . . . . .
ADJUSTING THE CLUTCH CABLE FREE PLAY 3-31. . . . . . . . . . . . . . .
REPLACING THE AIR FILTER ELEMENT 3-32. . . . . . . . . . . . . . . . . . . .
CHECKING THE FUEL AND BREATHER HOSES 3-33. . . . . . . . . . . . .
CHECKING THE CRANKCASE BREATHER HOSE 3-34. . . . . . . . . . . .
CHECKING THE EXHAUST SYSTEM 3-35. . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE EXUP CABLES 3-36. . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE COOLANT LEVEL 3-37. . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE COOLING SYSTEM 3-38. . . . . . . . . . . . . . . . . . . . . . . .
CHANGING THE COOLANT 3-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Page 88 of 457
3-11
ADJUSTING THE VALVE CLEARANCE
CHK
ADJ
NOTE:
EAS00045
ENGINE
ADJUSTING THE VALVE CLEARANCE
The following procedure applies to all of the
valves.
Valve clearance adjustment should be made
on a cold engine, at room temperature.
When the valve clearance is to be measured or
adjusted, the piston must be at top dead center
(TDC) on the compression stroke.
1. Remove
rider seat
Refer to “SEATS”.
fuel tank
Refer to “FUEL TANK”.
air filter case
Refer to “AIR FILTER CASE”.
bottom cowlings
side cowlings
Refer to “COWLINGS”.
throttle body assembly
Refer to “THROTTLE BODIES” in chapter 7.
air cut-off valve
Refer to “AIR INDUCTION SYSTEM” in
chapter 7.
radiator
radiator fan motor
Refer to “RADIATOR” in chapter 6.
2. Remove
ignition coils
spark plugs
cylinder head cover
cylinder head cover gasket
Refer to “CAMSHAFT” in chapter 5.
3. Remove
pickup rotor cover
1
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Page 449 of 457

9-1
STARTING FAILURES
TRBL
SHTG
NOTE:
FUEL SYSTEM
Fuel tankEmpty fuel tank
Clogged fuel filter
Clogged fuel strainer
Clogged fuel tank drain hose
Deteriorated or contaminated fuel
Fuel pump Faulty fuel pump
Faulty fuel pump relay
Throttle body (-ies)
Deteriorated or contaminated fuel
Sucked-in air
Ignition coil(s) Cracked or broken ignition coil body
Broken or shorted primary or secondary
coils
Ignition system Faulty ECU
Faulty crankshaft position sensor
EAS00844
TROUBLESHOOTING
The following guide for troubleshooting does not cover all the possible \
causes of trouble. It should be
helpful, however, as a guide to basic troubleshooting. Refer to the relative procedure i\
n this manual for
checks, adjustments, and replacement of parts.
STARTING FAILURES
ENGINE
Cylinder(s) and cylinder head(s)
Loose spark plug
Loose cylinder head or cylinder
Damaged cylinder head gasket
Damaged cylinder gasket
Worn or damaged cylinder
Incorrect valve clearance
Improperly sealed valve
Incorrect valve-to-valve-seat contact
Incorrect valve timing
Faulty valve spring
Seized valve
Piston(s) and piston ring(s) Improperly installed piston ring
Damaged, worn or fatigued piston ring
Seized piston ring
Seized or damaged piston
Air filter Improperly installed air filter
Clogged air filter element
Crankcase and crankshaft Improperly assembled crankcase
Seized crankshaft
ELECTRICAL SYSTEMS
Battery Discharged battery
Faulty battery
Fuse(s) Blown, damaged or incorrect fuse
Improperly installed fuse
Spark plug(s)
Incorrect spark plug gap
Incorrect spark plug heat range
Fouled spark plug
Worn or damaged electrode
Worn or damaged insulator
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