2005 Polaris Magnum 330 2x4 Owners Manual - Page 99

2005 Polaris Magnum 330 2x4 Manual

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MAINTENANCE AND LUBRICATION Adjustments Carburetor IMPORTANT: Your Polaris ATV 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 operation. Optional jets, available from your Polaris 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 vehicle for approximately five minutes. 2. Place the transmission in PARK and lock the parking brake. 1 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. 96

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96
MAINTENANCEANDLUBRICATION
Adjustments
Carburetor
IMPORTANT:
Your Polaris ATV 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 operation. Optional jets, available from your
Polaris dealer, are required for operation above 6,000 feet and
temperatures below +40 degrees F. (4 degrees C.)
NOTE:
Continuousoperationoftheenginewithoutproperjetting
whenrequiredcancausepoorperformance,overheatingor
enginedamage.SeeyourPolarisdealerformoreinformation
aboutjettingtheATVforconditionsinyourarea.
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
vehicle for approximately five
minutes.
2.
Place the transmission in PARK and
lock the parking brake.
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.
1