Service manual

3 - 10
CHK
ADJ
ADJUSTING THE VALVE CLEARANCE
6. Adjust:
• valve clearance
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a. Remove the valve lifter 1 and the valve pad
2 with a valve lapper 3.
NOTE:
_
• Cover the timing chain opening with a rag to
prevent the valve pad from falling into the
crankcase.
• Make 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.
NOTE:
_
• The thickness a of each valve pad is
marked in hundredths of millimeters on the
side that touches the valve lifter.
• Since valve pads of various sizes are origi-
nally installed, the valve pad number must be
rounded in order to reach the closest equiva-
lent to the original.
c. Round off the original valve pad number
according to the following table.
Valve lapper
90890-04101
Valve pad thickness
range
Available valve pads
Nos.
120 ~ 240
1.20
(0.047) ~
2.40 mm
(0.094 in)
25 thicknesses in
0.05 mm (0.002 in)
increments
Last digit Rounded value
0 or 2 0
55
810