2004-2005 Honda TRX450R Factory Sevice Manual, Page 100Get this manual
FUEL SYSTEM THROTTLE VALVE Install he needle clip on th jet needle
THROTTLE VALVE
STANDARD CUP posmON: 3rd roove ro top
Install he jet need le into the th rottle alv e
JET NEEDLE
Inst all the link arm into the throttle valve and ighten
NEEDLE CUP