2006-2012 Honda TRX90 TRX90EX/X Service Manual, Page 74Get this manual
FUEL SYSTEM Inspect the float valve seat for scores, scratches, clogging and damage
Check the tip of the float valve where it contacts the valve for stepped wear or contaminationReplace tne valve if the tip is worn or contaminatedCheck the operation of the float valve
FLOAT VALVE TIP
Remove the followingMain jet Needle jet holder Needle jet Slow jet Throttle stop screwspring NEEDLE JET HOLDER NEEDLE JET MAIN JET