Engine Backfires
| Possible Cause | Solution |
|---|---|
|
Out of fuel |
Refuel |
|
Weak spark from spark plug |
Inspect, clean and/or replace spark plugs |
|
Incorrect spark plug gap or heat range |
Set gap to specs or replace plugs |
|
Old or non-recommended fuel |
Replace with fresh recommended fuel |
|
Incorrectly installed spark plug wires |
Your POLARIS dealer or other qualified person can assist. |
|
Incorrect ignition timing |
Your POLARIS dealer or other qualified person can assist. |
|
Loose ignition connections |
Check all connections and tighten |
|
Water present in fuel |
Replace with fresh recommended fuel |
|
Exhaust leak |
Check all connections |
|
Mechanical failure |
Your POLARIS dealer or other qualified person can assist. |