3-100 ENGINE
• Check and correct the positions of the “F I T” line on the gen-
erator rotor and cam drive idle gear/sprocket
1.
#
NOTE:
Due to special valve train mechanism, aligning of the three ele-
ments; the engraved line
A, embossed line
B and the gear
tooth root on the cam drive idle gear/sprocket; can occur once
every other rotation of crankshaft.
#
#
When checking the positions, remove the cam chain
slack at the cam chain guide
2 side by holding the
cam drive idle gear/sprocket by hand.
INCORRECT
CORRECT
If the engraved line
A does not align the embossed
line
B, turn the crankshaft 360° (1 turn) to bring the
“F I T” line on the generator rotor to the index mark of
the valve timing inspection hole again and reinstall the
cam drive idle gear/sprocket to the correct position as
shown.
Root of tooth
CORRECT
Paint
Pull the cam chains upward, or the chain will be
caught between crankcase and cam drive sprocket
when turning the crankshaft.
Top of tooth
INCORRECT
Top of tooth
INCORRECT
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