Installing The Camshaft And Rocker Arms - Yamaha YXR70FX Service Manual

ROCKER ARMS AND CAMSHAFT
1
b
a
4 - 24
4. Measure:
• rocker arm shaft outside diameter
Out of specification → Replace.
Rocker arm shaft outside diame-
ter
11.981 ~ 11.991 mm
(0.4717 ~ 0.4721 in)
5. Calculate:
• rocker-arm-to-rocker-arm-shaft clearance
TIP:
_
Calculate the clearance by subtracting the
rocker arm shaft outside diameter from the
rocker arm inside diameter.
Out of specification → Replace the defective
part(s).
Rocker-arm-to-rocker-arm-shaft
clearance
0.009 ~ 0.037 mm
(0.0004 ~ 0.0015 in)
EAS00243
INSTALLING THE CAMSHAFT AND
ROCKER ARMS
1. Install:
• bearing 1
(onto the cylinder head)
TIP:
• Apply engine oil to the bearing.
• Install the bearing so that the seal is facing
a the camshaft.
Installed depth b
0 mm (0 in)
ENG