2005-2006 Honda ATV TRX500FE/FM/TM FourTrax Foreman Factory Service Manual, Page 100Get this manual
FUEL SYSTEM AIR CUT-OFF VALVE Disconnect the vacuum hose from the vacuum joint pipeRemove the attaching screw and air cut-off valveSCREW VACUUM HOSE
Remove the O-rings and joint pipe
JOINT PIPE