Adjusting The Valve Clearance - Yamaha T135SE Service Manual

ADJUSTING THE VALVE CLEARANCE

c
d
1
2
3
b
a
4
c. Align the TDC mark
rotor with the stationary pointer
crankcase cover.
d. Measure the valve clearance with a thick-
ness gauge 1
1
Out of specification → Adjust.
10. Adjust:
9 valve clearance
a. Loosen the locknut 1 .
b. Insert a thickness gauge
end of the adjusting screw and the valve tip.
c. Turn the adjusting screw 3 in direction a
or b until the specified valve clearance is
obtained.
Direction
Direction
9 Hold the adjusting screw to prevent it from
moving and tighten the locknut to specifica-
tion.
d. Measure the valve clearance again.
e. If the valve clearance is still out of specifica-
tion, repeat all of the valve clearance
adjustment steps until the specified clear-
ance is obtained.
3-9
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CHK
ADJ
c on the generator
2 between the
Valve clearance is
aa
increased.
Valve clearance is
bb
decreased.
44
Tappet adjusting tool
90890-01311
Locknut
7 Nm (0.7 m·kg, 5.0 ft·lb)
d on the