Yamaha YFM250XS Offroad Vehicle User Manual


 
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10. Install the air filter element.
11. Install the air filter case cover by fasten-
ing the holders.
12. Install the seat.
NOTE:
_
The air filter element should be cleaned every
2040 hours. It should be cleaned more often
if the ATV is operated in extremely dusty ar-
eas. Each time air filter element maintenance
is performed, check the air inlet to the air filter
case for obstructions. Check the air filter ele-
ment rubber joint to the carburetor and mani-
fold fittings for an airtight seal. Tighten all
fittings securely to avoid the possibility of unfil-
tered air entering the engine.
_
CAUTION:
_
Never operate the engine with the air filter
element removed. This will allow unfiltered
air to enter, causing rapid engine wear and
possible engine damage. Additionally, op-
eration without the air filter element will af-
fect carburetor jetting with subsequent
poor performance and possible engine
overheating.
_
U4XE16.book Page 16 Monday, March 24, 2003 3:14 PM