95
MAINTENANCE AND LUBRICATION
Adjustments
Carburetor
Your Polaris ATV is calibrated at the factory for optimal perform ance
at altitudes ranging from zero to 6, 000 feet (1800 m) and temperatures
of +40 degrees F. (4 degrees C. ) or higher. Above 6000 feet (1800 m)
the engine air/fuel mixture becomes overly rich and the engine loses
approximately 3% of its power for each 1000-foot (304.8 m) increase
in elevation. Although this power cannot be regained, adjustments to
the carburetor and drive system can be made to allow more efficient
operation. Optional jets, available from your P olaris dealer, are
required for operation above 6,000 feet and temperatures below +40
degrees F. (4 degrees C.)
NOTE: Continuous operation of the engine without proper jetting
when required can cause poor performance, overheating or
engine damage. See your Polaris dealer for more information
about jetting the ATV for conditions in your area.
If the engine idle speed is not satisfactory,
and all other conditions are favorable, the
carburetor can be adjusted.
1. Warm up the engine by running the
vehicl e for approximately five
minutes.
2. Place the transmission in gear with
the parking brake applied.
3. Adjust the carburetor idle screw (1)
either in or out until the desired idle
RPM is reached. Turning the screw
in (clockwise) will raise RPM.
Turning the screw out
(counterclockwise) will lower RPM.
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