Yamaha GRIZZLY Ultramatic YFM660FP, Руководство по обслуживанию

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ENG
ROCKER ARMS
REMOVING THE ROCKER ARM
1.Remove:
●
Rocker arm shafts
1
●
Rocker arms
2
NOTE:
Use a slide hammer bolt
3
and weight
4
to
remove the rocker arm shafts.
Slide hammer set:
P/N. YU-01083-A
Slide hammer bolt (M6):
P/N. 90890-01083
Weight:
P/N. 90890-01084
CHECKING THE ROCKER ARM
1.Check:
●
Rocker arm lobes
1
●
Valve adjusters
2
Blue discoloration/pitting/scratches
→
Replace.
2.Check:
●
Rocker arms
●
Rocker arm shafts
Damage/wear
→
Replace.
*****************************************************
Checking steps:
●
Check the two contact areas on the rocker
arms for signs of abnormal wear.
1) Rocker arm shaft hole.
2) Camshaft lobe contact surface.
Excessive wear
→
Replace.
●
Check the surface of the rocker arm shafts.
Blue discoloration/pitting/scratches
→
Replace/check lubrication.
●
Measure the inside diameter
a
of the rocker
arm holes.
Out of specification
→
Replace.
Rocker arm inside diameter:
12.000 ~ 12.018 mm
(0.4724 ~ 0.4731 in)