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71
MAINTENANCE
Carburetor
Your Polaris vehicle is calibrated at the factory for optimal performance
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 opera-
tion. Optional jets, available from your Polaris dealer, are required for
operation above 6,000 feet and temperatures below +40 degrees F. (4
degrees C.)
Tip: 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 vehicle for conditions in
your area.
Carburetor/Engine Idle RPM Adjustment
If the engine idle speed is not satisfactory, and all other conditions are
favorable, the carburetor can be adjusted.
1. Place the transmission in neutral.
2. Set the parking brake.
3. Start the engine and allow it to warm up for approximately five min-
utes.
4. Turn the carburetor idle screw in (clockwise) to raise RPM. Turn the
screw out (counterclockwise) to lower RPM.
Carburetor
Idle
Screw
Drain
Screw
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