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b
a
1
1. Throttle stop screw
Idle speed adjustment
NOTE:
A diagnostic tachometer must be
used for this procedure.
1. Attach the tachometer. Start
the engine and warm it up for
a few minutes at approximate-
ly
1,000
to
2,000
Occasionally rev the engine to
4,000
to
5,000
r/min.
engine is warm when it quickly
responds to the throttle.
PERIODIC MAINTENANCE AND MINOR REPAIR
2. Set the idle to the specified
engine speed by adjusting the
throttle stop screw. Turn the
screw
in
increase engine speed and in
direction b to decrease engine
speed.
Standard idle speed:
1,250 ~ 1,350 r/min
EAU01168
NOTE:
If the specified idle speed cannot
be obtained by performing the
above
adjustment,
Yamaha dealer.
r/min.
The
a
direction
to
a. Free play
Throttle cable free play
inspection
There should be a free play of 3 ~
5 mm at the throttle grip. If the free
consult
a
play is incorrect, ask a Yamaha
dealer to make this adjustment.
6-14
1
a
2
3
4
EAU00635
5
6
7
8
9
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Table of Contents
Troubleshooting
