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ADJUSTING THE VALVE CLEARANCE
CHK
ADJ
NOTE:
NOTE:
NOTE:
5. Remove:
Scamshafts
SRefer to “DISASSEMBLING THE ENGINE –
CAMSHAFT AND CYLINDER HEAD” in chap-
ter 5.
SWhen removing the timing chain and cam-
shafts, fasten the timing chain with a wire to re-
trieve it if it falls into the crankcase.
6. Adjust:
Svalve clearance
a. Remove the valve lifter
1
and the valve pad
2
with a valve lapper
3
.
Valve lapper
90890-04101
SCover the timing chain opening with a rag to
prevent the valve pad from falling into the
crankcase.
SMake a note of the position of each valve lifter
1
and valve pad
2
so that they can be
installed in the correct place.
b. Select the proper valve pad from the follow-
ing table.
Valve pad
thickness range
Available valve
pads
Nos.
120 X
240
1.20
(0.0472) X
2.40 mm
(0.0945 in)
25 thicknesses in
0.05 mm (0.002 in)
increments
SThe thickness
a
of each valve pad is marked
in hundredths of millimeters on the side that
touches the valve lifter.
SSince valve pads of various sizes are originally
installed, the valve pad number must be
rounded in order to reach the closest equiva-
lent to the original.