PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6
3. Insert a new air filter element into
the air filter case.
CAUTION:
ECA10480
●
Make sure that the air filter ele-
ment is properly seated in the
air filter case.
●
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.
EAU21381
Checking the 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.
EAU21401
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. Air filter element
1. Throttle cable free play
U3D810E0.book Page 16 Wednesday, July 19, 2006 11:14 AM