ADJUSTING
VALVE
CLEARANCE
1.
Measure the clearance with a feeler gauge after aligning each cylinder with the top dead
center of compression.
NOTE: Align the flywheel mark
(TC)
with the timing check mark
on
the crankcase.
ADJUSTING COMPRESSION RELEASE
1.
Close the exhaust valve completely.
Valve clearance
2.
Remove the compression release window cover from the head
cover.
3.
Pull the compression release
lever.
0.145 0.185 mm
-T
0.006 to 0.007 in.
4.
Reduce the valve clearance to zero
by
the compression release adjustment bolt. Reach for the
bolt through the window. Then, screw
in
the bolt by 1
to
1.5
turns and tighten the lock nut.
NOTE:
After adjustment, turn the crankshaft
by
hand and check
to
see that the valve and the
piston should not be
in
contact with each
other.
Reference value
0.750 to
1.125
mm
0.0295 to 0.0443 in.
Compression release adjustment
1.
Compression Release Window Cover
2. Compression Position
3. Compression Release Position
112
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