G
The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
5. Install the air filter case cover by in-
stalling the screws.
PERIODIC MAINTENANCE AND MINOR REPAIR
Adjusting the carburetor
The carburetor is an important part of
the engine and requires very sophisti-
cated adjustment. Therefore, all carbu-
retor adjustments should be left to a
Yamaha dealer, who has the neces-
sary professional knowledge and expe-
rience.
6-9
EAU21300
Adjusting the throttle cable
free play
1
ZAUM0051
1. Throttle cable free play
The throttle cable free play should mea-
sure 1.5–3.0 mm (0.06–0.12 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
EAU21380
6