Yamaha Sniper - Adjusting the Valve Clearance

CHK
ADJ
ADJUSTING THE VALVE CLEARANCE
3-9
d. Measure the valve clearance with a thick-
ness gauge
1
Out of specification
→
Adjust.
✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬
c
d
1
1
2
a
b
3
4
10. Adjust:
9
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.
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.
✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬
Direction
aa
Valve clearance is
increased.
Direction
bb
Valve clearance is
decreased.
Tappet adjusting tool
44
90890-01311
Locknut
7 Nm (0.7 m·kg, 5.0 ft·lb)
c. Align the TDC mark
c
on the generator
rotor with the stationary pointer
d
on the
crankcase cover.
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