1985-1995 Polaris ATV and Light Utility Hauler Service Manual, Page 371Get this manual
ENGINESCARBURETION Troubleshooting Idle Too Low Choke cable bending or incorrectly adjusted Idle speed set incorrectly Idle mixture screw misadjusted or damaged Pilot mixture screw incorrectly adjusted Belt dragging Ignition timing incorrect Choke cable bending or incorrectly adjusted Throttle cable incorrectly adjusted Air leaks, dirty carburetor passages (pilot circuit) Pilot mixture screw damaged or adjusted incorrectly Tight valves Ignition timing incorrect Belt dragging Dirty air cleaner Engine worn Spark plug fouled Idle speed set incorrectly (speed limiter)