2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 159Get this manual
CARBURETORSPORTSMAN 500 6Remove the screws that secure the fuel sender to the tank
TROUBLESHOOTING
FUEL STARVATIONLEAN MIXTURE Symptoms: Hard start or no start, bog, backfire, popping through intakeexhaust, hesitation, detonation, low power, spark plug erosion, engine runs hot, surging, high idle, idle speed erratic No fuel in tank Restricted tank vent, or routed improperly Fuel lines or fuel valve restricted Fuel filter plugged Carburetor vent line(s) restricted Plugged or restricted inlet needle and seat screen or inlet passage Clogged jets or passages Float stuck, holding inlet needle closed or inlet needle stuck Float level too low Intake air leakthrottle shaft, intake ducts, airbox or air cleaner cover) Jet needle position incorrect Incorrect pilot screw adjustment RICH MIXTURE Symptoms: Fouls spark plugs, black, sooty exhaust smoke, rough idle, poor fuel economy, engine runs rough misses, poor performance, bog, engine loads up, backfireSlowly lift the sender out of the tankLift the sender out at an angle, so the float will more easily come out of the fuel tank