Page 59 of 382
INSP
ADJ
VALVE CLEARANCE ADJUSTMENT
3-5
6. Align:
•Reference mark “T” on the flywheel (1)
with the fixed reference mark on the
crankcase (2).
NOTE:
Check that the piston is under compression at top
dead centre (T.D.C.).
(3) Ignition timing reference mark
7. Check:
•Valve clearance
Out of specification ➔Adjust.
Valve clearance (cold):
Intake:
0.05 ~ 0.10 mm
Exhaust:
0.12 ~ 0.17 mm
8. Adjust:
•Valve clearance
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
Adjustment:
•Loosen the lock nut (1).
•Fit a thickness gauge (2) between the rocker
arm and the valve stem.
•Turn the adjuster (1) clockwise or anticlock-
wise using the special tool (2) to obtain the
required clearance.
Special tool:
P/N. 90890-01311
•Holding the adjuster firmly in place, lock tight-
en lock nut.
Lock nut:
14 Nm (1.4 mkg)
•Measure valve clearance.
If the clearance is incorrect, repeat the previ-
ous stages to achieve the required value.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
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Page 62 of 382
THROTTLE CABLE FREE PLAY ADJUSTMENT
3-8
INSP
ADJ
THROTTLE CABLE FREE PLAY
ADJUSTMENT
NOTE:
Before adjusting the throttle cable free play, adjust
the engine idle speed.
1. Remove:
•Seat
•Fuel tank
See section “SEAT, FUEL TANK AND
REAR COWLING”.
2. Check:
•Throttle cable free play (a)
Out of specification ➔Adjust.
Throttle cable free play:
3 ~ 5 mm (at the grip flange)
3. Adjust:
•Throttle cable free play
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
Adjustment:
•Loosen the throttle cable (2) lock nuts (1).
•Turn the adjuster (3) clockwise or anticlock-
wise to obtain the required free play.
•If after loosening the adjuster by 5 mm, the
free play is still not correct, tighten the
adjuster (4) on the throttle cable (5) once
more.
•Tighten the lock nuts.
(1), (6) Lock nuts
4. Reassemble:
•Fuel tank
•Seat
See section “SEAT, FUEL TANK AND
REAR COWLING”.
a
Seat screws:
10 Nm (1,0 mkg)
2
1
3
6
4
5
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Page 64 of 382
SPARK PLUG INSPECTION
3-10
INSP
ADJ
8. Lock tighten:
•Spark plug
Before installing the spark plug, clean the
surface and thread.
Spark plug:
18 Nm (1.8 mkg)
Seat screws:
10 Nm (1.0 mkg)
NOTE:
Tighten the spark plug by hand before torquing to
specification.
9. Connect:
•Spark plug cap
10. Install:
•Fuel tank
•Seat
See section “SEAT, FUEL TANK AND
REAR COWLING”.
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Page 75 of 382
INSP
ADJ
3-21
ENGINE OIL PRESSURE CHECK/
CLUTCH ADJUSTMENT
ENGINE OIL PRESSURE CHECK
1. Remove:
•Bleeder screw (1)
2. Start the engine and keep it idling until oil
flows out of the bleed hole.
3. Inspect:
•Conditions of oil at bleeder hole.
Oil leakage ➔Oil pressure good.
No leakage ➔Pressure insufficient.
If the oil does not come out after one minute,
stop the engine immediately to prevent
seizure.
4. Tighten:
•Bleeder screw
CAUTION:
Bleeder screw:
5 Nm (0.5 kgm)
CLUTCH ADJUSTMENT
Cable free play adjustment
1. Check:
•Clutch free play adjustment (a)
Out of specification ➔Adjust.
Free play:
10 ~ 15 mm
2. Adjust:
•Clutch cable free play
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
Adjustment:
•Loosen lock nuts (1).
•Turn the adjuster (2) either way to obtain cor-
rect free play.
•Tighten lock nuts after adjustment.
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Page 76 of 382

CLUTCH ADJUSTMENT
3-22
INSP
ADJ
NOTE:
After adjustment, recheck lever free play to make
sure that it works smoothly and progressively.
If it is impossible to obtain the required adjust-
ment or if the clutch does not work properly,
adjust the internal mechanism.
Internal mechanism adjustment
1. Loosen:
•Lock nuts on the lever cable adjuster and
crankcase adjuster
2. Fully tighten:
•Adjusters
3. Drain off:
•Engine oil
See section “ENGINE OIL REPLACE-
MENT”.
4. Remove:
•Footrest (right) (1)
•Engine protector (2)
5. Disconnect:
•Brake pedal return spring (3)
6. Remove:
•Rear master cylinder fastening screws (4)
•Oil delivery hose fastening screw (5)
•Right crankcase cover fastening screws
•Right crankcase cover (6)
7. Loosen:
•Lock nut (1)
8. Push the engine clutch control lever forward
to the stop point.
9. Adjust:
•Free play
With the lever in this position, turn the
adjuster (2) either way until the marks on
the lever (3) and crankcase (4) are
aligned.
10. Tighten:
•Lock nut (1)
Lock nut:
8 Nm (0.8 mkg)
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Page 85 of 382
1
2
INSP
ADJ
ADJUSTING THE REAR BRAKE
3-31
ADJUSTING THE REAR BRAKE
1. Check:
•Brake pedal position
(distance afrom the top of the rider
footrest to the top of the brake pedal)
Out of specification ➔Adjust.
2. Adjust:
•Brake pedal position
•Tighten lock nut.
After adjusting the brake pedal position, make
sure the brake doesn't oppose resistance.
CAUTION:
•Loosen lock nut (1).
•Turn the adjuster (2) either way to obtain the
correct pedal height.
WARNING
If the brake brake pedal has a soft or slack
feel, this means that there is air in the brake
system. It should be bled away before using
the motorcycle. Air in the system seriously
affects the effectiveness of braking and may
cause loss of control of the motorcycle.
Brake pedal position
(below the top of the rider footrest):
10 mm
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
Unscrewing Height (a) diminishes.
Screwing Height (a) increases.
Lock nut:
20 Nm (2.0 mkg)
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Page 86 of 382

CHECKING THE BRAKE FLUID LEVEL
3-32
INSP
ADJ
CHECKING THE BRAKE FLUID LEVEL
1. Stand the motorcycle on a level surface.
NOTE:
•Place the motorcycle on a suitable stand.
•Make sure that the motorcycle is upright.
2. Check:
•Brake fluid level
Below the minimum level mark a➔Add
the recommended brake fluid to the prop-
er level.
[A] Front brake
[B] Rear brake
WARNING
•Use only the designated brake fluid. Other
brake fluids may cause the rubber seals to
deteriorate, causing leakage and poor
brake performance.
•Refill with the same type of brake fluid that
is already in the system. Mixing brake flu-
ids may result in a harmful chemical reac-
tion, leading to poor brake performance.
•When refilling, be careful that water does
not enter the reservoir. Water will signifi-
cantly lower the boiling point of the brake
fluid and could cause vapor lock.
Brake fluid may damage painted surfaces and
plastic parts. Therefore, always clean up any
spilt brake fluid immediately.
NOTE:
In order to ensure a correct reading of the brake
fluid level, make sure that the top of the reservoir
is horizontal.
CAUTION:
Recommended brake fluid:
DOT4
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Page 90 of 382

DRIVE CHAIN SLACK INSPECTION AND ADJUSTMENT/
DRIVE CHAIN LUBRICATION
3-36
INSP
ADJ
Rear wheel axle nut:
115 Nm (11.5 mkg)
•Turn each adjusting bolt exactly the same
amount to maintain correct axle alignment.
There are marks on each side of the
swingarm. Use these marks to align the rear
wheel.
DRIVE CHAIN LUBRICATION
The chain consists of many parts which work with
each other. If the chain is not maintained properly,
it will wear out quickly. Therefore, the chain must
be serviced regularly. This service is especially
necessary when riding in dusty areas. This motor-
cycle has a drive chain with small rubber O-Rings
between the chain plates. Steam cleaning, high-
pressure washing and certain solvents can dam-
age these O-Rings. Use only kerosene to clean
the drive chain. Wipe it dry, and thoroughly lubri-
cate it with SAE 80 ~ 90W motor oil or special lu-
bricant for O-Ring chains. Do not use any other lu-
bricants on the drive chain. They may contain sol-
vents that could damage the O-Rings.
Recommended lubricant:
SAE 80W/90 engine oil or
special lubricant for
O-Ring chains.
(1) O-Rings
•Loosen the axle nut (1).
•Loosen the locknuts (2) on each side. To tight-
en the chain, turn the chain adjusting bolts (3)
in direction (a). Loosen the locknuts on each
side. To loosen the chain, turn the chain
adjusting bolts in direction (b) and push the
wheel forward.
•After adjusting, tighten the locknuts (2). Then
tighten the axle nut (1) to the specified torque.
a
b
2
13
➩➩
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