2005-2006 Honda ATV TRX500FE/FM/TM FourTrax Foreman Factory Service Manual, Page 102Get this manual
FUEL SYSTEM Remove the primer knob assembly and springCheck the diaphragm for pin holes, deterioration or damage
SPRING DIAPHRAGM
FLOAT CHAMBER
Remove the diaphragmvacuum piston (page 6-8)Remove the four screws and the float chamberNOTE: Remove the carburetor heater and collar after removing the float chamber if necessarySCREWS FLOAT CHAMBER
CARBURETOR HEATER, COLLAR
Tap the float pin Remove the following: gently with suitablebaffle plate pin (O.D2 mm)float pin from the long bossfloat side