Polaris Outlaw 9921123 Owner's Manual page 197

Troubleshooting
Engine Runs Irregularly, Stalls or Misfires
Possible Cause
Fouled or defective spark plug
Worn or defective spark plug wire
Incorrect spark plug gap or heat range
Loose ignition connections
Defective ignition system
Water present in fuel
Low battery voltage
Kinked or plugged fuel vent line
Old or non-recommended fuel
194
Solution
Inspect, clean and/or replace spark plug
See your Polaris dealer
Set gap to specs or replace plug
Check all connections and tighten
See your Polaris dealer
Replace with new fuel
Recharge battery to 12.8 VDC or replace
Inspect and replace
Replace with recommended fuel