How to fix engine backfires in my Polaris Magnum 330?
- JJoe Lane Jr.Aug 15, 2025
Engine backfires in your Polaris Offroad Vehicle can be due to: * Weak spark from spark plugs: Inspect, clean, and/or replace spark plugs. * Incorrect spark plug gap or heat range: Set the gap to the correct specifications or replace the plugs. * Old or non-recommended fuel: Replace with new fuel.