4 - 21
ENGCAMSHAFT AND ROCKER ARMS
REMOVAL POINTS
Rocker arm shaft
1. Remove:
lRocker arm shafts
NOTE:
Use a slide hammer bolt 1 and weight 2 to
slide out the rocker arm shafts.
Slide hammer set:
YU-01083-A
Slide hammer bolt:
90890-01085
Weight:
90890-01084
Camshaft
1. Remove:
lCamshaft 1
lCamshaft bearing 2
NOTE:
Screw in a suitable length of 8 mm bolt 3 into
the threaded end of the camshaft and pull out
the camshaft.
INSPECTION
Camshaft
1. Inspect:
lCam lobes
Pitting/scratches/blue discoloration ®
Replace.
2. Measure:
lCam lobes length a and b
Out of specification ® Replace.
Cam lobes length limit:
Intake:
a 25.851 mm (1.0178 in)
b 21.165 mm (0.8333 in)
Exhaust:
a 25.811 mm (1.0162 in)
b 21.020 mm (0.8276 in)
5 - 22
CHASFRONT FORK
5. Install:
lOil seal 1
NOTE:
lApply the fork oil on the inner tube.
lWhen installing the oil seal, use vinyl seat a
with fork oil applied to protect the oil seal lip.
lInstall the oil seal with its manufacturer's
marks or number facing upside.
lPress the oil seal into the outer tube with fork
seal driver attachment (ø30) 2 and fork seal
driver weight 3.
Fork seal driver weight:
YM-33963/90890-01367
Fork seal driver attachment (ø30):
YM-33281/90890-01400
New
6. Install:
lStopper ring 1
NOTE:
Fit the stopper ring correctly in the groove in
the outer tube.
7. Install:
lDust seal 1
NOTE:
Apply the lithium soap base grease on the
inner tube.
8. Check:
lInner tube smooth movement
Tightness/binding/rough spots ®
Repeat the steps 2 to 7.
