Polaris 450 S Offroad Vehicle User Manual

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