Polaris 450 S Offroad Vehicle User Manual

Carburetor Jetting
Carburetor re-jetting can be performed to compensate for altitude and/or temperature
changes. If the vehicle is to be operated at various altitudes and temperatures, certain adjust-
ments 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 (305 m) increase in elevation. Although this power cannot be regained,
changes to the carburetor and drive system can be made to allow more efficient operation.
NOTE: Contact your dealer for altitude adjustments. Your dealer has the training and special tools
required to perform these modifications.