Content Source: 2021 Slingshot Owner’s Manual (9939930 R02) > Troubleshooting 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

Engine Starts But Misses or Runs Poorly

NOTICE
Turn engine OFF before inspecting any of these items.
Possible Cause Possible Remedy/Action
Battery Discharged Fully charge the battery. See the Battery Charging section for details.
Battery Cables Loose or Corroded Inspect battery cables and connections.
Spark Plug(s) Fouled Inspect spark plugs. See the Spark Plug Recommendations section for details.
Spark Plug Wire(s) Loose or Wet Inspect spark plug wires, ensure dry/secure.
Contaminated Fuel Inspect fuel for water / contamination. See dealer.
Engine Oil Level Incorrect Or Wrong Type Inspect level and quality of oil. See the Engine Oil Level for details.
Loose, Broken, Shorted Ignition Coil Wires Inspect coil primary wires. See dealer.
Air Intake Restricted Inspect air filter. See the Air Filter section for details.

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