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CHAPTER 3.
PERIODIC INSPECTION AND ADJUSTMENTS
INTRODUCTION..........................................................................................................3-1
PERIODIC MAINTENANCE/LUBRICATION INTERVALS........................................3-1
SEAT, FUEL TANK AND REAR COWLING................................................................3-3
REMOVAL ............................................................................................................3-3
INSTALLATION ....................................................................................................3-3
ENGINE........................................................................................................................3-4
VALVE CLEARANCE ADJUSTMENT ..................................................................3-4
DRIVE CHAIN ADJUSTMENT ..............................................................................3-7
IDLE SPEED ADJUSTMENT ................................................................................3-7
THROTTLE CABLE FREE PLAY ADJUSTMENT ................................................3-8
SPARK PLUG INSPECTION ................................................................................3-9
IGNITION TIMING CHECK ................................................................................3-11
COMPRESSION INSPECTION ..........................................................................3-12
ENGINE OIL LEVEL CHECK ..............................................................................3-15
ENGINE OIL REPLACEMENT ............................................................................3-17
ENGINE OIL PRESSURE CHECK ....................................................................3-21
CLUTCH ADJUSTMENT ....................................................................................3-21
AIR FILTER CLEANING ......................................................................................3-24
FUEL FILTER CLEANING ..................................................................................3-25
ENGINE OIL TANK FILTER CLEANING ............................................................3-26
SUCTION HOSE AND MANIFOLD INSPECTION..............................................3-28
FUEL LINE INSPECTION ..................................................................................3-28
CRANKCASE VENTILATION HOSE INSPECTION ..........................................3-29
EXHAUST SYSTEM INSPECTION ....................................................................3-29
CHASSIS....................................................................................................................3-30
ADJUSTING THE FRONT BRAKE ....................................................................3-30
ADJUSTING THE REAR BRAKE ......................................................................3-31
CHECKING THE BRAKE FLUID LEVEL ............................................................3-32
BRAKE PAD WEAR INSPECTION ....................................................................3-33
BRAKE HOSING INSPECTION ..........................................................................3-33
BRAKE CIRCUIT BLEEDING ............................................................................3-34
DRIVE CHAIN SLACK INSPECTION AND ADJUSTMENT..................................3-35
DRIVE CHAIN LUBRICATION ............................................................................3-36
FRONT FORK INSPECTION ..............................................................................3-37
ADJUSTING THE FRONT FORK ......................................................................3-37
REAR SHOCK ABSORBER ADJUSTMENT ......................................................3-38
STEERING INSPECTION ..................................................................................3-40
TYRE INSPECTION ............................................................................................3-41
WHEEL INSPECTION ........................................................................................3-44
SPOKE INSPECTION AND TIGHTENING ........................................................3-44
CABLE INSPECTION..........................................................................................3-45
LEVER AND PEDAL LUBRICATION ..................................................................3-45
SIDESTAND LUBRICATION ..............................................................................3-46
REAR SUSPENSION LUBRICATION ................................................................3-46
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INSP
ADJINTRODUCTION/PERIODIC MAINTENANCE/
LUBRICATION INTERVALS
3-1
PERIODIC INSPECTION AND ADJUSTMENTS
INTRODUCTION
This chapter includes all information necessary to perform recommended inspections and adjustments.
These preventive maintenance procedures, if followed, will ensure more reliable vehicle operation and a
longer service life. The need for costly overhaul work will be greatly reduced. This information applies to
vehicles already in service as well as to new vehicles that are being prepared for sale. All service techni-
cians should be familiar with this entire chapter.
PERIODIC MAINTENANCE/LUBRICATION INTERVALS
ODOMETER READING (x 1,000 km)
ANNUAL N0. ITEM CHECK OR MAINTENANCE JOB
110 2030 40CHECK
1
*Fuel line• Check fuel hoses for cracks or damage. ✓✓ ✓✓ ✓•
• Check condition.
✓✓
2 Spurk plug• Clean and regap.
• Replace.✓✓
3 * Valves• Check valve clearance.
✓✓ ✓✓
• Adjust.
4Air filter element• Clean.✓✓
• Replace. ✓✓
5 Clutch• Check operation.
✓✓ ✓ ✓✓
• Adjust.
• Check operation, fluid level and vehicle for fluid leakeage.
6 * Front brake•(See NOTE). ✓✓ ✓ ✓✓ ✓•
• Replace brake pads. Whenever worm to the limit
• Check operation, fluid level and vehicle
•for fluid leakage. ✓✓ ✓ ✓✓ ✓
7 * Rear brake•(See NOTE).
• Replace brake pads. Whenever worm to the limit
8 * Brake hoses• Check for cracks or damage.✓✓✓✓ ✓• Replace. (See NOTE). Every 4 years
9 * Wheels• Check runout, spoke tightness and for damage.
✓✓✓ ✓
• Tighten spokes if necessary.
• Check tread depth and for damage.
10 * Tyres• Replace if necessary.
✓✓✓✓ ✓
• Check air pressure.
• Correct if necessary.
11 * Wheel bearings• Check bearing for looseness or damage.✓✓✓✓
12 * Swingarm• Check operation and for excessive play.✓✓✓✓
• Check chain slack.
13 * Drive chain• Make sure that the rear wheel is properly aligned.Every 500 km and after washing the
• Clean and lubricate.motorcycle or riding in the rain.
14 *Steering • Check bearing play and steering for roughness. ✓✓ ✓ ✓✓bearings
• Lubrificate with lithium-soap-based grease. Every 20,000 km
15 *Chassis • Make sure that all nuts, bolts and screws are properly
✓✓ ✓✓ ✓
fasteners•tightened.
16Sidestand• Check operation.
✓✓ ✓✓ ✓
• Lubricate.
17
*Sidestand
• Check operation and for oil leakage. ✓✓ ✓ ✓✓ ✓
switch
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3-12
INSP
ADJ
COMPRESSION INSPECTION
COMPRESSION INSPECTION
NOTE:
Insufficient compression causes a loss of per-
formance.
WARNING
Set the motorcycle firmly in place to prevent it
falling during the operation.
1. Remove:
•Seat
•Fuel tank
See section “SEAT, FUEL TANK AND
REAR COWLING”.
2. Check:
•Valve clearance
Out of specification ➔Adjust.
See section “VALVE CLEARANCE AD-
JUSTMENT”.
3. Install:
•Secondary fuel tank
4. Start engine and let it heat.
•Switch off engine.
5. Disconnect:
•Spark plug cap
6. Remove:
•Spark plug (1)
When removing the spark plug, be careful to
prevent foreign bodies from dropping inside
the engine.
CAUTION:
1
7. Apply:
•Pressure gauge (1)
•Adapter (2)
Pressure gauge:
P/N. 90890-03081
Adapter:
P/N. 90890-04082
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INSP
ADJ
COMPRESSION INSPECTION
9. Remove:
•Secondary fuel tank
•Pressure gauge (with adapter)
10. Reassemble:
•Spark plug
See section “SPARK PLUG INSPEC-
TION”.
Spark plug:
18 Nm (1.8 mkg)
Seat screws:
10 Nm (1.0 mkg)
11. Connect:
•Spark plug cap
12. Reassemble:
•Fuel tank
•Seat
See section “SEAT, FUEL TANK AND
REAR COWLING”.Pressure under compression:
(after adding oil to the cylinder)
Reading Diagnosis
Pressure higherPiston worn or
than beforedamaged.
Pressure same Cylinder head or
as before piston rings, valves,
gaskets may be
faulty.
Pressure above Inspect cylinder
maximum value head, valve sur-
faces, piston rim to
check for carbon
deposits.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
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INSP
ADJSTEERING INSPECTION/
TYRE INSPECTION
3-41
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
Nut (steering axle):
115 Nm (11.5 mkg)
Screws (front fork bracket):
28 Nm (2.8 mkg)
•Tighten the steering axle nut and the front fork
bracket screws.
•Reassemble the fuel tank.
See section “SEAT, FUEL TANK AND REAR
COWLING”.
NOTE:
Check the steering head for looseness or binding
by turning it all the way in both directions. If it
binds, remove the steering axle assembly and
inspect the steering bearings.
Refer to “STEERING HEAD” in Chapter 6.
TYRE INSPECTION
WARNING
•Tyre pressure must be checked when the
tyres are at ambient temperature. Pressure
must be adjusted according to the total
weight of luggage, driver, passenger and
accessories (fairings, bags, if approved for
this model) and speed of the motorcycle.
•A list of tyres approved for this model fol-
lowing severe testing by Yamaha is provid-
ed. There can be no guarantee of safe road-
holding if a combination of tyres different
from those indicated is used.
•Front and rear tyres must have the same
design and be of the same make.
•The use of valves and valve stems other
than those indicated might cause the loss
of tyre pressure at high speeds. Use only
original or compatible spare parts.
•Replace the valve cap securely to prevent
losses of tyre pressure at high speed.
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