2003 Polaris Deep Snow Snowmobiles Service Manual, Page 345Get this manual
ELECTRICAL TPS (Throttle Position Sensor)
Some Polaris snowmobiles are manufactured with Throttle Position Sensors (TPS)The TPS comes set from the factory and should not need adjustmentHowever, upon removal of the TPS, you must mark the TPS position on the carburetor and replace it in the exact same position as removalPolaris has developed TPS test kit for aid in setting the Throttle Position Sensor to specification