2011 Polaris Sportsman 500 HO Owners Manual - Page 120

TROUBLESHOOTING Engine Stops or Loses Power Possible Cause Out of fuel Kinked or plugged fuel vent line Overuse of choke Water is present in fuel Fouled or defective spark plug(s) Worn or defective spark plug wires Incorrect spark plug gap or heat range Loose ignition connections Low battery voltage Incorrect fuel Clogged air filter Reverse speed limiter malfunction Electronic throttle control malfunction Other mechanical failure Overheated engine Solution Refuel, cycle key to ON position three times for 5 seconds each, then start Inspect and replace Inspect, clean and/or replace spark plugs Replace with new fuel Inspect, clean and/or replace spark plug(s) See your dealer Set gap to specs or replace plug Check all connections and tighten Recharge the battery to 12.8 VDC Replace with fresh recommended fuel Inspect and clean or replace See your dealer See your dealer See your dealer Clean radiator screen and core, clean engine exterior, see your dealer Engine Overheating Possible Cause Debris lodged in screen Solution Remove and clean the screen. Pull on the top portion of the screen, then remove the lower portion. Use a garden hose to flush any debris from the radiator fins. NOTE: High pressure washers can deform the radiator fins and reduce cooling efficiency. Clean any debris or mud that may be interfering with fan movement. Plugged Radiator Obstructed cooling fan 116