1985-1995 Polaris ATV and Light Utility Hauler Service Manual, Page 364Get this manual
ENGINESCARBU RETION Carburetor Assembly Carburetor AssemblylAdjustment
1Install the needle jet making sure the slot is aligned with the tab in the jet blockInstall the main jet and washer3
Install the pilot mixture screw, spring, washer, and a-Ring as an assemblyLubricate the a-Ring with oil or light grease before installationCAUTION: Do not damage the a-Ring during installationTurn the screw in until it lightly contacts the seatBack out the specified number of turns