2004-2005 Honda TRX450R Factory Sevice Manual, Page 159Get this manual
CYLINDER HEADIVALVE
CAMSHAFT HOLDER INSTA LLATION
Apply molybdenum oil solution to th alve stem ends Install the va lve shims in their or ig inal locations
Being careful not to damage the slidi ng surfaces of the titters and bo res
Coat the outer surface of he valve lifters with molybdenum oil solution Inst all th valve lifte rs in heir original lifter bores in the camshaft holder
Install the dowel pins
Lubricate the cam lobes, roll er and shim con tact areas of th roc ker armsInst all the camshaft assembly onto he cylinder head with he cam lobes facing up