2003 Polaris 3 PRO X Factory Service Manual, Page 121Get this manual
CARBURETION Mikuni TMX Carburetor Adjustments Float Level Adjustment
1Remove float bowl2With carburetor positioned as shown, float arm should be parallel with body Arms must be parallel to each other3To adjust float arm, bend tang contacting inlet needleCAUTION: Never bend the float arm itself
Leak Testing Needle and Seat
1Be sure float level is adjusted properly2Invert carburetor3Install float chamber and connect pressure tester PN 2870975 to fuel inlet fitting