1999-2002 TRX400EX Fourtrax Service Manual, Page 65Get this manual
FUEL SYSTEM SPECIFICATIONS
ITEM Carburetor identification number Mainjet Slow jet Jet needle clip position Pilot screw opening Float level Idle speed Throttle lever free plav SPECIFICAllONS QS10A
3rd groove from top See page 5-13 18.5 mm (0.73in) 1,400 100 rpmmm {18516in)