2005-2007 Polaris Ranger 500 service manual, Page 150Get this manual
ELECTRONIC FUEL INJECTION FUEL SYSTEM TROUBLESHOOTING
The correct position of the throttle body idle stop is established and set at the factoryDo not loosen the throttle body idle stop or alter the stop position in any fashionIf the stop is repositioned, the entire throttle body assembly must be replacedFuel 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 injectors restricted Fuel pump inoperative Air leak in system Intake air leak (throttle shaft, intake boot, gasket or grommet) Throttle stop screw tamperingreplace throttle body Failed Sensor or disconnected wiring
Poor Idle