2011 Polaris Ranger 400 Owners Manual - Page 108

TROUBLESHOOTING Engine Doesn't Turn Over Possible Cause Low battery voltage Loose battery connections Loose solenoid connections Loose electronic control box connections Solution Recharge the battery to 12.8 VDC Check all connections and tighten Check all connections and tighten Inspect, clean, reinstall connectors Engine Turns Over, Fails to Start Possible Cause Out of fuel Water is present in fuel Old or non-recommended fuel Fouled or defective spark plugs No spark to spark plug Water or fuel in crankcase Overuse of choke Low battery voltage Mechanical failure Solution Refuel Drain the fuel system and refuel Replace with fresh recommended fuel Inspect plugs and replace if necessary Inspect plugs and replace if necessary Immediately see your POLARIS dealer Inspect, clean and/or replace spark plug Recharge the battery to 12.8 VDC See your dealer Engine Backfires Possible Cause Weak spark from spark plug Incorrect spark plug gap or heat range Old or non-recommended fuel Incorrectly installed spark plug wires Incorrect ignition timing Mechanical failure Loose ignition connections Water present in fuel Solution Inspect, clean and/or replace spark plugs Set gap to specs or replace plugs Replace with fresh recommended fuel See your dealer See your dealer See your dealer Check all connections and tighten Replace with fresh recommended fuel 104