How to fix engine backfires on my Polaris RANGER 2004 Offroad Vehicle?
- BBrandon MartinAug 16, 2025
If your Polaris Offroad Vehicle engine is backfiring, here are several potential causes and solutions: * **Spark Plugs:** A weak spark from the spark plugs can cause backfiring. Inspect, clean, and/or replace the spark plugs. * **Spark Plug Gap:** An incorrect spark plug gap or heat range can also lead to backfires. Set the gap to the specified values or replace the plugs. * **Fuel:** Old or non-recommended fuel can be a contributing factor. Replace it with new fuel. For the following potential issues, it's recommended to consult your Polaris dealer: * Incorrectly installed spark plug wires * Incorrect ignition timing * Mechanical failure