3 - 9
CHK
ADJ
5. Measure:
• valve clearance
Out of specification
→
Adjust.
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a. Turn the primary sheave nut on the left side
of the crankshaft counterclockwise to turn
the crankshaft.
b. When the piston is at TDC on the compres-
sion stroke, align the “I” mark
a
on the
camshaft sprocket with the stationary
pointer
b
on the cylinder head.
c. Align the “I” mark
c
on the generator rotor
with the stationary pointer
d
on the genera-
tor cover.
d. Measure the valve clearance with a thick-
ness gauge
1
.
Out of specification
→
Adjust.
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Valve clearance (cold)
Intake valve
0.08 ~ 0.12 mm
(0.0031 ~ 0.0047 in)
Exhaust valve
0.16 ~ 0.20 mm
(0.0063 ~ 0.0079 in)
b
a
Содержание YP250R 2005
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