Engine Runs Irregularly, Stalls, or Misfires

Fouled or defective spark plugs

Inspect, clean and/or replace spark plugs

Worn or defective spark plug wires

Your POLARIS dealer or qualified person can assist

Incorrect spark plug gap or heat range

Set gap to specs or replace plugs

Loose ignition connections

Check all connections and tighten

Water present in fuel

Replace with new fuel

Low battery voltage

Recharge battery to 12.8 VDC

Kinked or plugged fuel tank vent line or filter

Inspect and replace

Kinked idle air control lines

Inspect; rotate lines to remove kink

Incorrect fuel

Replace with recommended fuel

Clogged air filter

Inspect and replace clogged/wet air filter, and also check for obstructed intake system, debris or cargo blocking intake vents

Clogged intake pre-filter

Inspect and clean (with soapy water) or replace

Other mechanical failure

See your dealer

Low or contaminated fuel

Add or change fuel, clean the fuel system

Low octane fuel

Replace with recommended fuel

Clogged fuel filter

See your dealer

Low fuel pressure

See your dealer