2004 Polaris Pro X Factory Service Manual, Page 141Get this manual
FUEL DELIVERY Troubleshooting Tips, 14-38 Throttle:
Obstruction in main jet or needle jet Jet needle worn or out of adjustment Pilot system malfunction Incorrect throttle valve cutaway
Troubleshooting Tips, 38-34 Throttle:
Main jet incorrect size or clogged (lean) Needle jet damaged or loose Needle jetjet needle worn (rich) E-clip position incorrect for altitude and temperature