2004 Polaris Touring Service Manual, Page 131Get this manual
FUEL SYSTEM
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