Operation Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
6-14
6
4. Insert the air filter element into the
air filter case as shown.
EC000082*
CAUTION:
@
●
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
pistons and/or cylinders may
become excessively worn.
@
5. Install the air filter case cover by
aligning the match marks and in-
stalling the screws.
EAU00630
Adjusting the carburetors
The carburetors are important parts of
the engine and require very sophisti-
cated adjustment. Therefore, most car-
buretor adjustments should be left to a
Yamaha dealer, who has the neces-
sary professional knowledge and expe-
rience. The adjustment described in
the following section, however, may be
serviced by the owner as part of routine
maintenance.
EC000095
CAUTION:
@
The carburetors have been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-
mance of or damage to the engine.
@
1. Air filter element holder
2. Projection
3. Slot
1. Match marks
U5SCE0.book Page 14 Thursday, June 7, 2001 11:24 AM