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INSP
ADJ
VALVE CLEARANCE ADJUSTMENT
●Align the “T” mark 1 on the flywheel with
the stationary pointer 2 on the crankcase
cover. When the “T” mark is aligned with
the stationary pointer, the piston is at Top
Dead Center (TDC).
NOTE:
T.D.C. on compression stroke check:
● Both rocker arms must have a valve clear-
ance when the rotor match mark 1 is
aligned with the stationary pointer match
mark 2.
● If not, give the crankshaft one counter-
clockwise turn to meet above condition.
●Measure the valve clearance using a
Feeler Gauge 3.
Out of specification → Adjust clearance.
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Intake valve (cold):
0.05 ~ 0.09 mm (0.002 ~ 0.004 in)
Exhaust valve (cold):
0.11 ~ 0.15 mm (0.004 ~ 0.006 in)
2.Adjust:
● Valve clearance
**********************************
Valve clearance adjustment steps:
●Loosen the locknut 1.
●Insert a Feeler Gauge 2 between the
adjuster end and the valve stem end.
●Turn the adjuster 3 clockwise or counter-
clockwise with the Valve Adjusting Tool
until proper clearance is obtained.
●Hold the adjuster to prevent it from mov-
ing and thoroughly tighten the locknut.
Valve adjusting tool 3 mm (0.12 in):
P/N. YM-08035, 90890-01311
T
R
.
.
Valve clearance adjusting locknut:
14 Nm (1.4 m • kg, 10 ft • lb)
3