3-10
CHK
ADJ
3
2
1
ADJUSTING THE VALVE CLEARANCE
c. Align the TDC mark
c
on the AC magneto
rotor with the stationary pointer
d
on the
crankcase.
d. Measure the valve clearance with a thick-
ness gauge.
Out of specification
J
Adjust.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
4. Adjust:
8
valve clearance
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a Loosen the locknut
1
.
b. Insert a thickness gauge
2
between the
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
a
Valve clearance is increased.
Direction
b
Valve clearance is decreased.
Valve adjusting tool
90
8
90-01311 (YM-0
8
035-A)
d. Hold the adjusting screw to prevent it from
moving and tighten the locknut to specifica-
tion.
Locknut
7Nm (0.7m • kgf, 5.1ft • lbf)
T
R
.
.
