87
MAINTENANCE AND LUBRICATION
Adjustments
Carburetor Adjustments
If the vehicle is operated at various altitudes and temperatures, some
adjustments can be made to improve its operation and driveability.
Above 6000 feet (1800 m), the engine air/fuel mixture becomes overly
rich. An engine loses approximately 3% of its power for each
1000-foot (304.8 m) increase in elevation. Although this power cannot
be regained, changes to the carburetor and drive system can be made to
allow efficient operation. These changes include:
1. Carburetor re-jetting to compensate for atmospheric pressure and
oxygen loss.
2. Transmission convertor modification to adjust for engine
horsepower loss.
We recommend that you see your Polaris dealer for altitude
adjustments. Polaris dealers have the proper training and tools
required to perform these modifications.
NOTE:
Pilot screws are sealed with metal plugs and are serviceable
only by Polaris dealers.
Jetting Chart
2002 LUH 6x6
AMBIENT TEMPERATURE
Below 40
_
F
Below 5
_
C
Above 40
_
F
Above 5
_
C
Altitude
Meters
0-1800
(0-6000)
147.5
142.5
Meters
(Feet)
Over 1800
(Over 6000)
140
135