Content Source: 2019 Slingshot Owner’s Manual (9928978 REV 05) > Maintenance Chapter

IMPORTANT

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

Spark Plugs

Spark Plug Recommendations

Refer to the specifications section beginning on Specifications for the recommended spark plug type and gap for your vehicle. Torque spark plugs to specification after installing.
NOTICE
Using non-recommended spark plugs can result in serious engine damage. Always use the recommended spark plugs.
Spark Plug Specifications
Spark Plug Type AC Delco 41-103 or equivalent
Spark Plug Torque 15 ft-lbs (20 Nm)
Inspect and replace spark plugs at the intervals recommended in the Periodic Maintenance Chart beginning on Periodic Maintenance. Inspect spark plugs when the engine is warm. Always replace spark plugs in sets of four.

Spark Plug Service

  1. Open the hood.
    caution
    A hot exhaust system and engine can cause burns. Allow a hot engine to cool or wear protective gloves when removing a spark plug for inspection.
  2. Unplug the spark plug wire connectors from the ignition coils.Image
  3. Remove the ignition coil bolts .
  4. Remove the ignition coils .
    caution
    Wear eye and face protection when using pressurized air.
  5. Before removing the spark plugs, use compressed air to remove any loose dirt or debris from the spark plug wells.
    NOTICE
    The spark plugs must be installed before using compressed air in this area.
  6. Rinse the plug wells with water and dry with compressed air.
    NOTE
    Spark plug wells have drain holes built into the cylinder head to allow water to drain out.
  7. Remove the spark plugs. Tool: 5/8” spark plug socket with extension.
  8. Inspect electrodes for wear and carbon buildup. A good plug will have a sharp outer edge with no rounding or erosion of the electrodes.
  9. Do not attempt to adjust spark plug gap.
  10. Reinstall the spark plugs or install new plugs.
  11. Tighten spark plugs to specification.
  12. Reinstall the ignition coils.
  13. Reinstall the ignition coil bolts. Tighten to specification.
    TORQUE
    7.5 ft-lbs (10 Nm)
  14. Connect the spark plug wires to the ignition coils.

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