2007-2009 Honda TRX300EX TRX300X service manual, Page 90Get this manual
FUEL SYSTEM Remove the float pin by gently tapping it with suitable driver (0 .0 mm) from the long boss side as shownRemove the float and float valveCheck the float for deformation or damage
Check the float valve and valve seat for scoring, scratches, clogs or damageCheck the tip of the float valve, where it contacts the valve seat, for stepped wear or contaminationCheck the operation of the float valve
VALVE SEAT
FLOAT VALVE
Handle al jets with careThey can easily be scored or scratched
Remove the following: slow jet main jet needle jet holder (loosen the lock nut) needle jet
PILOT SCREW
MAIN JET
Damage to the pilot screw seat will occur if the pilar screw is tigh tened