2004-2005 Honda TRX450R Factory Sevice Manual, Page 103Get this manual
FUEL SYSTEM
CARBURETOR INSTALLATION
Con nect he th rott le cab le to he hrott le dr um Inst all th throttle cable adjuster nto the carburetor and temporarily tighten the lock nut
RUBBER CAP
LOCK NUT
THROTTLE DRUM
Insta ll th hrott le rum cover nto he carburetor and tigh en the scr ew secu rely