Polaris 2016 RZR 900 - Manual (Page 144)

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TROUBLESHOOTING
Engine Doesn't Turn Over
Engine Turns Over, Fails to Start
Engine Backfires
Possible Cause Solution
Low battery voltage Recharge the battery to 12.8 VDC
Loose battery connections Check all connections and tighten
Loose solenoid connections Check all connections and tighten
Loose electronic control box connections Inspect, clean, reinstall connectors
Mechanical failure Your POLARIS dealer can assist
Possible Cause Solution
Out of fuel Refuel
Clogged fuel filter Your POLARIS dealer can assist
Water is present in fuel Drain the fuel system and refuel
Old or non-recommended fuel Replace with fresh recommended fuel
Fouled or defective spark plugs Inspect plugs and replace if necessary
No spark to spark plug Inspect plugs and replace if necessary
Water or fuel in crankcase Your POLARIS dealer can assist
Low battery voltage Recharge the battery to 12.8 VDC
Loose ignition connections Check all connections and tighten
Mechanical failure Your POLARIS dealer can assist
Possible Cause Solution
Out of fuel Refuel
Weak spark from spark plug Inspect, clean and/or replace spark plugs
Incorrect spark plug gap or heat range Set gap to specs or replace plugs
Old or non-recommended fuel Replace with fresh recommended fuel
Incorrectly installed spark plug wires Your POLARIS dealer can assist
Incorrect ignition timing Your POLARIS dealer can assist
Loose ignition connections Check all connections and tighten
Water present in fuel Replace with fresh recommended fuel
Exhaust leak Check all connections
Mechanical failure Your POLARIS dealer can assist