Polaris 2016 RZR 900 - Manual (Page 145)

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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
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
Kinked idle air control lines Inspect; rotate lines to remove kink
Incorrect fuel Replace with recommended fuel
Clogged air filter Inspect and 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