2004 Polaris Pro X Factory Service Manual, Page 132Get this manual
FUEL DELIVERY
DECREASING
INCREASING
THROTTLE OPENINGTYPICAL MIKUNI VM
Throttle Valve Cut-Away Jet NeedleNeedle Jet Polaris TM-3840 Mikuni component effect versus throttle opening chart
needle valve main jet Main jet needle needle jet throttle valve bypass pilot outlet air jet Start choke plunger starter jet fuel screw