Periodic maintenance and adjustment
7-15
7
case. The engine should never
be operated without the air filter
element installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
[ECA10482]
9. Install the air filter case cover by
installing the screws.
10. Connect the hoses to the air filter
case.
11. Push the air filter case onto the air
filter case joint, and then tighten
the clamp screw.
12. Install the bolts.
EAU21252
Carburetor
The carburetor is an important part of
the engine and its emission control
system, which requires very sophisti-
cated adjustment. Therefore, carbure-
tor adjustments should be left to
Yamaha dealer, who has the necessary
professional knowledge and experi-
ence.
EAU44735
Checking the engine idling
speed
Check the engine idling speed and, if
necessary, have it corrected by a
Yamaha dealer.
Engine idling speed:
1350–1450 r/min
U46B78E0.book Page 15 Monday, July 4, 2016 2:29 PM
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