2005-2009 Honda TRX400EX/TRX400X Service Manual, Page 92Get this manual
FUEL SYSTEM baffle plate diaphragm shaft boot
Check the boot for deterioration or damage
Remove the following- float pin (by gently tapping it from the throttle drum side ith suitabl pin driver)floatfloat va lve
Check the float for deformation or damageCheck the float valve and valve seat for scoringsc ratches, clogs or damageCheck the tip of the float valve, whe re it contacts the valve seat, for stepped wear or contamination Check he peration of the float valve
Handle alllelS wl1h care They can ea5 tly be scored or scratchedDamage to lne pilot screw sear will occur If the pilot screw IS righ rened against the seat