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TROUBLESHOOTING
Engine Pings or Knocks
Engine Runs Irregularly, Stalls or Misfires
Possible Cause Solution
Poor quality or low octane fuel Replace with recommended fuel
Incorrect ignition timing Your POLARIS dealer can assist.
Incorrect spark plug gap or heat range Set gap to specs or replace plugs
Possible Cause Solution
Loose, missing or kinked boost reference
lines
Replace boost reference lines
Loose or missing intake system sensor
connections
Inspect connections, tighten or replace as
needed
Fouled or defective spark plugs Inspect, clean and/or replace spark plugs
Worn or defective spark plug wires Your POLARIS dealer 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
Incorrect fuel Replace with recommended fuel
Clogged air filter Inspect and replace
Clogged intake pre-filter Inspect and clean (with soapy water) or
replace
Other mechanical failure Your POLARIS dealer can assist.
Possible Lean Fuel Cause Solution
Low or contaminated fuel Add or change fuel, clean the fuel system
Low octane fuel Replace with recommended fuel
Clogged fuel filter Your POLARIS dealer can assist.
Low fuel pressure Your POLARIS dealer can assist.
Loose, missing, torn or kinked boost
reference line from manifold to fuel
pressure regulator or blow-off valve
Replace boost reference line
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