2004-2005 Honda TRX450R Factory Sevice Manual, Page 140Get this manual
CYLINDER HEADIVALVE Remove he ensio ner lifter sealing bolt and washer
Turn he cam chain tensioner lifter shaft cl ockw ise ully and secure it with the special tool to loosen the tensioner lifter
cam chain te nsio ner hol der 07ZMG -M CAA400
TENSIONER HOLDER