PERIODIC MAINTENANCE AND MINOR REPAIR
1. Throttle stop screw
Idle speed adjustment
1. Start the engine and warm it up for
a few minutes at approximately
1,000 to 2,000 r/min. Occasionally
6
rev the engine to 4,000 to
5,000 r/min. The engine is warm
when it quickly responds to the
throttle.
2. Set the idle to the specified engine
speed by adjusting the throttle
stop screw. Turn the screw in di-
rection a to increase engine
speed and in direction b to de-
crease engine speed.
Standard idle speed:
1,100 r/min (except for F, S, SF, D)
1,050 r/min (for F, S, SF, D)
NOTE:
@
If the specified idle speed cannot be
obtained by performing the above ad-
justment, consult a Yamaha dealer.
@
EAU00632
a. Free play
Throttle cable free play
inspection
There should be a free play of 3 ~
7 mm at the throttle grip. If the free play
is incorrect, ask a Yamaha dealer to
make this adjustment.
6-15
EAU00635