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CHK
ADJ
ADJUSTING THE VALVE CLEARANCE
3. Remove:
• hose holder 1
• lead holder 2
• pickup coil rotor cover 3
4. Measure:
• valve clearance
Out of specification → Adjust.
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a. Turn the crankshaft clockwise.
b. When piston #1 is at TDC on the compres-
sion stroke, align the “T” mark a on the
pickup coil rotor with the crankcase mating
surface b.
NOTE:
@
TDC on the compression stroke can be found
when the camshaft lobes are turned away from
each other.
c. Measure the valve clearance with a thick-
ness gauge 1.
NOTE:
@
• If the valve clearance is incorrect, record the
measured reading.
• Measure the valve clearance in the following
sequence.
È
Front
d. To measure the valve clearances of the
other cylinders, starting with cylinder #1 at
TDC, turn the crankshaft counterclockwise
as specified in the following table.
Valve clearance (cold)
Intake valve
0.15 ~ 0.22 mm
Exhaust valve
0.18 ~ 0.25 mm
Valve clearance measuring sequence
Cylinder #1
→
#2
→
#4
→
#3
IN
EX