Required Tools and Supplies
- 8mm Socket or Included Tool
- T40 TORX® Socket
- 5/8” Deep Well Socket or Included Spark Plug Tool
- Ratchet
- Torque Wrench
- Air Chuck
- Dielectric Grease or Petroleum Jelly
- Eye Protection
- Nitrile Gloves
- Shop Rags
For information on tools, read the Tools and Fasteners Guide. Always wear safety glasses and nitrile gloves when servicing your vehicle. Always allow the engine to cool completely before performing this procedure.
To inspect and replace the spark plugs on your RZR Pro S or Pro XP, follow these steps:
1. Park the vehicle on a flat, level surface in a well-ventilated area and ensure it is in PARK.
2. Remove the four cargo box fasteners with a T40 TORX® socket.
3. Lift the cargo box up and out to remove from the vehicle.
4. Clean the area around the spark plugs before removing the plugs.
5. Disconnect the connectors from the ignition coils.
6. Remove the ignition coil fasteners with an 8mm socket.
7. Carefully lift up to remove the ignition coils.
8. Blow any dirt or debris out of the spark plug wells with compressed air to prevent anything from falling into the cylinders.
9. Carefully loosen the spark plugs by rotating them counterclockwise with the included spark plug tool or a 5/8” spark plug socket to remove from the vehicle. Tip: If reusing, take note of the cylinders they were installed in for reinstallation.
10. Inspect the electrodes for wear and carbon buildup and verify there are no cracks around the insulation. The spark plug should have a sharp outer edge with no rounding or erosion.
11. Inspect the spark plugs for the correct color.
- The normal insulator tip is gray, tan or light brown with few combustion deposits with unburnt and uneroded electrodes. This indicates the proper type and heat range for the engine and the service.
- The tip should not be white. A white insulator tip indicates overheating caused by an improper spark plug or incorrect throttle body adjustments.
- A wet fouled insulator tip is black. If it is black, this usually means excessive oil consumption, use of non-recommended oil, or poor fuel quality.
12. Inspect and adjust the spark plug gap if needed. The gap should measure 0.7-0.8 mm.
13. If necessary, replace with the recommended spark plug, part number 3023173. Important: Severe engine damage may occur if the incorrect plug is used.
14. Install the spark plugs into the engine and torque to 7 ft-lbs (10 Nm) with a 5/8” deep socket.
15. Apply a light coat of dielectric grease to the bottom of the ignition coils.
16. Reinstall the ignition coils and ensure they are fully seated.
17. Reinstall the ignition coil fasteners and torque to 7 ft-lbs (10 Nm).
18. Reconnect the connectors to the ignition coils.
19. Reconnect the ignition coil harness connectors and verify that the connections are properly secured.
20. Reinstall the cargo box and torque fasteners to 31 in-lbs (3.5 Nm).
21. Start the engine to verify proper operation.
For more information, see your authorized Polaris Dealer. Find a dealer near you with the Dealer Locator.
Maintenance tips, procedures and specifications can be found in your Owner's Manual.
To find diagrams and replacement part numbers, use the online parts catalog.
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Unless noted, trademarks are the property of Polaris Industries Inc.
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