1. Air filter element
3. Insert a new air filter element into
the air filter case.
CAUTION:
G
Make sure that the air filter ele-
ment is properly seated in the
air filter case.
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.
4. Install the air filter case cover by in-
stalling the bolts.
PERIODIC MAINTENANCE AND MINOR REPAIR
Checking the throttle cable
free play
1. Throttle cable free play
ECA10480
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.
EAU21381
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.
6-16
EAU21401
6