Carburetors
The carburetors are important parts of
the engine and emission control sys-
tem, which require very sophisticated
adjustment. Therefore, all carburetor
adjustments should be left to a Yamaha
dealer, who has the necessary profes-
sional knowledge and experience.
PERIODIC MAINTENANCE AND ADJUSTMENT
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Checking the engine idling
speed
Check the engine idling speed and, if
necessary, have it adjusted by a
Yamaha dealer.
Engine idling speed:
950–1050 r/min
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Checking the throttle cable
free play
1. Throttle cable free play
The throttle cable free play should mea-
sure 4.0–6.0 mm (0.16–0.24 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
8-20
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