2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 122Get this manual
FUEL SYSTEM ('04'05) Slide the rubber cap off the hot start valve nutLoosen the hot start valve nut and remove the hot start valve from the carburetor
HOT START VALVE NUT Loosen the band screws and remove carburetor from the insulator and connecting hose
BAND SCREWS Remove the screw and throttle drum cover from the carburetor