2008 Polaris Sportsman 800 EFI Touring Owners Manual - Page 134

TROUBLESHOOTING Engine Doesn't Turn Over Possible Cause Low battery voltage Loose battery connections Loose solenoid connections Solution Recharge the battery to 12.8 VDC Check all connections and tighten Check all connections and tighten Engine Turns Over, Fails to Start Possible Cause Out of fuel Clogged fuel filter Water is present in fuel Old or non-recommended fuel Fouled or defective spark plug(s) No spark to spark plug Water or fuel in crankcase Low battery voltage Mechanical failure Solution Refuel, cycle key to ON position three times for 5 seconds each, then start Replace the filter Drain the fuel system and refuel Replace with fresh recommended fuel Inspect plugs and replace if necessary Inspect plugs, verify stop switch is on Immediately see your Polaris dealer 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 plug(s) 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 134