PERIODIC MAINTENANCE AND MINOR REPAIR
1. Screw (´ 4)
5. Remove the air filter case cover by
removing the screws.
6. Pull out the air filter.
7. Tap the air filter lightly to remove
most of the dust and dirt. Blow out
the remaining dirt with com-
pressed air as shown. If the air fil-
ter is damaged, replace it.
8. Reassemble by reversing the re-
moval procedure.
CAUTION:
Make sure the air filter is prop-
l
erly seated in the air filter case.
The engine should never be run
l
without the air filter installed.
Excessive piston and/or cylin-
der wear may result.
6-11
Carburetor adjustment
The carburetors are important parts of
the engine and require very sophisti-
cated adjustment. Most adjustments
should be left to a Yamaha dealer who
has the professional knowledge and
experience to do so. However, the idle
speed may be adjusted by the owner
as part of routine maintenance.
CAUTION:
The carburetors were set at the
Yamaha factory after many tests. If
they are changed, poor engine per-
formance and damage may result.
EC000082
EAU00630
EC000095