ENGINE 3-99
FRONT CAM DRIVE IDLE GEAR/SPROCKET
• Turn the crankshaft counterclockwise with the box wrench
and align “F I T” line
A on the generator rotor with the index
mark
B of the valve timing inspection hole while keeping the
camshaft drive chain pulled upward.
#
#
• Apply molybdenum oil solution to the cam drive idle gear/
sprocket bearing, its shaft
1, and thrust washer
2.
) MOLYBDENUM OIL
NOTE:
* The thickness of thrust washer
2 must be selected for each
cylinder head. THRUST WASHER SELECTION !3-44
* Paint the engraved line
C on the cam drive idle gear/sprocket.
• Install the cam drive idle gear/sprocket onto the front cylinder
head and engage the cam chain on it.
• Align the engraved line
C on the cam drive idle gear/sprocket
with the embossed line
D on the cylinder head.
• Install the cam drive idle gear/sprocket shaft
1, the copper
washer
3 and the thrust washer
2.
Pull the cam chains upward, or the chain will be
caught between crankcase and cam drive sprocket.
To adjust the camshaft timing correctly, be sure to
align “F I T” line
A with the index mark
B and hold
this position when installing the cam drive idle gears/
sprockets, front and rear.
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