PERIODIC MAINTENANCE AND ADJUSTMENT
7-14
7
5. Install the air filter case cover by
aligning the match marks and in-
stalling the bolts.
TIP
If dust or water collects in the air filter
check hose, remove the clamp from it,
and then remove the plug to drain the
hose.
EAU21290
Adjusting the carburetors
The carburetors are important parts of
the engine and require very sophisticat-
ed adjustment. Therefore, most carbu-
retor 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 ser-
viced by the owner as part of routine
maintenance.
NOTICE
ECA10560
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
1. Air filter check hose
U1BF20E0.book Page 14 Thursday, April 9, 2009 9:10 AM