2003 Polaris 3 PRO X Factory Service Manual, Page 98Get this manual
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CARBURETION Jet Part Numbers
Throttle Valve Cutaway Part Numbers (Mikuni TMX-34)
Throttle Valve NoPART NO1.5 3131041 2.0 3131042 2.5 3131043 3.0 3131044 3.5 3131045 4.0 3131046