In-Line Fuel Filter; Air Cleaner/Filter - Arctic Cat 120 Sno Pro 2011 Operator's Manual

The maximum speed of the snowmobile
can be reduced by adjusting the speed
control screw.
To reduce the maximum speed, rotate the
speed control screw clockwise. DO NOT
EVER INCREASE THE MAXIMUM
SPEED BEYOND THE ORIGINAL 8
MPH MAXIMUM!

In-Line Fuel Filter

! WARNING
Whenever any
inspection is made on a fuel system
when there may be fuel leakage,
there should be no welding, smok-
ing, open flames, etc., in the area.
Arctic Cat recommends that the in-line
fuel filter be checked once a month. The
filter is located in the fuel hose between
the gas tank and carburetor. The only
cleaning possible is to back-flush the fil-
ter using clean gasoline. To check, clean,
or replace the filter, use the following
procedure:
1. Turn the gas tank shut-off valve to
the CLOSED position.
2. Remove and discard the clamps;
then pry the fuel hoses off the in-line
fuel filter and remove the filter.
3. Install the in-line fuel filter in the
fuel hose so the arrow on the filter
points toward the carburetor. Make
sure the fuel hoses fit tightly on the
filter. If a fuel hose does not fit
tightly, cut 6 mm (1/4 in.) from the
end of the fuel hose; then install on
the filter. Install new clamps.
CAUTION
The fuel hoses must fit tightly on the
fuel filter. If the fuel hose length
doesn't permit
replace the fuel hose. Also, after
installing the fuel hoses on the filter,
check to be sure that the fuel hoses
do not contact any hot or rotating
components.
4. Turn the gas tank shut-off valve to
the OPEN position.
12
maintenance or
this procedure,

Air Cleaner/Filter

The air filter inside the air cleaner hous-
ing must be kept clean to provide good
engine power and gas mileage. If the
snowmobile is used under normal condi-
tions, service the filter at the intervals
specified. If operated in adverse condi-
tions, inspect and service the filter more
frequently. Use the following procedure
to remove the filter and to inspect and/or
clean it.
CAUTION
Failure to inspect the air filter fre-
quently if the snowmobile is used in
adverse conditions can damage the
engine.
1. Remove the two screws securing the
air cleaner cover; then remove the
cover.
2. Remove the foam filter from the
housing.
3. Clean the foam filter in a non-flam-
mable cleaning solvent; then allow
the filter to dry.

NOTE: Foam Filter Cleaner (p/n
0436-194) and Foam Filter Oil (p/n
0436-195) are available from Arctic Cat.
4. Put the dry filter in a plastic bag;
then pour in recommended air filter
oil and work the oil into the filter.
CAUTION
A torn air filter can cause damage to
the engine. Contaminants may get
inside the engine if the filter is torn.
Carefully examine the filter for tears
before and after cleaning it. Replace
the filter with a new one if it is torn.
5. Clean any debris from inside the air
cleaner. Be sure no debris enters the
carburetor.
6. Place the filter into the housing.
7. Place the air cleaner cover onto the
housing; then secure with the two
screws.