Content Source: 2021 RZR S4 1000 Owner’s Manual (9931549 R02) > Troubleshooting Chapter
| IMPORTANT |
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The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle.Always follow the warnings and instructions in Owner's Manual. Click the CONTENTS link above for the Table Of Contents, or download a full PDF of the Owner Manual in the Owner Support area of Polaris.com |
| Possible Cause | Solution |
|---|---|
|
Fouled or defective spark plugs |
Inspect, clean and/or replace spark plugs |
|
Worn or defective spark plug wires |
Your POLARIS dealer or qualified person can assist |
|
Incorrect spark plug gap or heat range |
Set gap to specs or replace plugs |
|
Loose ignition connections |
Check all connections and tighten |
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Water present in fuel |
Replace with new fuel |
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Low battery voltage |
Recharge battery to 12.8 VDC |
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Kinked or plugged fuel tank vent line or filter |
Inspect and replace |
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Kinked idle air control lines |
Inspect; rotate lines to remove kink |
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Incorrect fuel |
Replace with recommended fuel |
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Clogged air filter |
Inspect and replace |
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Clogged intake pre-filter |
Inspect and clean (with soapy water) or replace |
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Other mechanical failure |
See your dealer |
| Possible Lean Fuel Cause | Solution |
|---|---|
|
Low or contaminated fuel |
Add or change fuel, clean the fuel system |
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Low octane fuel |
Replace with recommended fuel |
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Clogged fuel filter |
See your dealer |
|
Low fuel pressure |
See your dealer |
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