Installing The Rocker Arms And Camshaft - Yamaha YBR125ED 2005 Service Manual

ROCKER ARMS AND CAMSHAFT
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3. Measure:
• rocker arm inside diameter
Out of specification → Replace.
Rocker arm inside diameter
10.000 ~ 10.015 mm
(0.3937 ~ 0.3943 in)
<Limit>: 10.030 mm (0.3949 in)
4. Measure:
• rocker arm shaft outside diameter
Out of specification → Replace.
Rocker arm shaft outside diame-
ter
9.981 ~ 9.991 mm
(0.3930 ~ 0.3933 in)
<Limit>: 9.950 mm (0.3917 in)
5. Calculate:
• rocker-arm-to-rocker-arm-shaft clearance
NOTE:
_
Calculate the clearance by subtracting the
rocker arm shaft outside diameter from the
rocker arm inside diameter.
Above 0.080 mm (0.0031 in) → Replace the
defective part(s).
Rocker-arm-to-rocker-arm-shaft
clearance
0.009 ~ 0.034 mm
(0.0003 ~ 0.0013 in)
<Limit>: 0.080 mm (0.0031 in)
EAS00220
INSTALLING THE ROCKER ARMS AND
CAMSHAFT
1. Lubricate:
• camshaft
Recommended lubricant
Camshaft
Molybdenum - disulfide grease
Camshaft bearing
Engine oil
ENG