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PERIODIC MAINTENANCE AND MINOR REPAIR
6-19
6
EAU21270
Adjusting the 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.
EAU21380
Adjusting the throttle cable
free play
The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
EAU21400
Adjusting the valve clearance
The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
1. Throttle cable free play
U5GK15E0.book Page 19 Tuesday, April 13, 2004 3:52 PM