Arctic Cat S2009BCDFCOSL, Operator'S Manual, Page: 49 / 88

MAINTENANCE 45
ADJUSTING
CARBURETORS
The carburetors have been calibrated at
the factory for average riding condi-
tions; however, altitude, temperature,
and general wear may necessitate cer-
tain carburetor adjustments.
Be sure
the correct carburetor main jets
for the operating temperature, alti-
tude, and type of gasoline are being
used (see Selecting Carburetor
Main Jets sub-section).
Since carbu-
retor adjustments critically affect
engine performance, Arctic Cat recom-
mends that all changes in internal car-
buretor calibration and piston valve
synchronization be made by an autho-
rized Arctic Cat Snowmobile dealer;
however, four external adjustments can
be made on each carburetor.
These are the choke cable travel, piston
valves, pilot air screws, and idle speed
screws.

NOTE: Carburetor adjustments
and changing main jets may be
done by the snowmobile owner if
qualified to do so. If the owner
does not feel qualified, take the
snowmobile to an authorized Arc-
tic Cat Snowmobile dealer for this
service. This service is at the dis-
cretion and expense of the snow-
mobile owner.
Adjusting Choke Cable
1. Be sure the ignition switch key is
in the OFF position and the brake
lever lock is set.
2. Loosen the jam nut securing each
choke cable adjuster. Rotate each
choke cable adjuster clockwise
until it bottoms against the brass
plunger cap.
0727-156
3. Slowly rotate one choke cable
adjuster counterclockwise while
checking the choke lever for free-
play. As soon as all free-play has
been removed from the end of the
lever, stop rotating the adjuster.
4. With free-play removed from the
lever, slowly rotate each choke
cable adjuster once again clock-
wise while checking the choke
cable lever for free-play. Adjust
until 3 mm (1/8 in.) free-play
between front bottom edge of lever
and housing is attained. Securely
tighten the adjuster jam nut.
732-848B
! CAUTION
After operating the snowmobile for
the initial 5-10 minutes, stop the
engine, allow the engine to cool
down, and check the coolant level.
Add coolant as necessary.
! CAUTION
Make sure to perform these adjust-
ment/synchronization procedures
on all carburetors.