Yamaha WR250F(P), Owner'S Service Manual

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INSP
ADJ
VALVE CLEARANCE INSPECTION AND ADJUSTMENT
●
Locate the rounded-off value and the
measured valve clearance in the chart
“PAD SELECTION TABLE”. The field
where these two coordinates intersect
shows the new pad number to use.
NOTE:
Use the new pad number only as a guide
when verifying the valve clearance adjust-
ment.
●
Install the new pads 7 and the valve lift-
ers 8 .
NOTE:
●
Apply the engine oil on the valve lifters.
●
Apply the molybdenum disulfied oil on the
valve stem ends.
●
Valve lifter must turn smoothly when
rotated with a finger.
●
Be careful to reinstall valve lifters and
pads in their original place.
●
Install the decompression shaft 9 , copper
washer 0 , bolt (decompression shaft) A ,
guide B , bolt (guide) C and decompres-
sion cable
D
.
NOTE:
Apply the engine oil on the decompression
shaft.
T
R
.
.
Bolt (decompression shaft):
7 Nm (0.7 m • kg, 5.1 ft • lb)
Bolt (guide):
10 Nm (1.0 m • kg, 7.2 ft • lb)
●
Install the camshafts (exhaust and intake).
Refer to “CAMSHAFTS” section in the
CHAPTER 4.