2004-2005 Honda TRX450R Factory Sevice Manual, Page 134Get this manual
9CYLINDER HEADVALVE
SYSTEM COMPONENTS SERVICE INFORMATION TROUBLESHOOTING
CYLINOER HEAO OISASSEMBLY 914 VALVE GUI OE REPLACEMENT 16 VALVE SEAT INSPECTIOREFACING
CYLINOER COMPRESSiON 96 CYLINDER HEAD COVER REMOVAL 96 CAMSHAFT HOLDER REMOVAL 96 CAMSHAFTDECOMPRESSOR DISASSEMBLY CYLIND ER HEAD REMOVAL