2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 309Get this manual
CRANKCASETRANSMISSIONCRANKSHAFTBALANCER ('04'05) Apply molybdenum oil solution to the claws and guide pins of the center and right shift forksInstall the center shift fork into the M3 gear shifter groove with the identification mark facing upInstall the right shift fork into the C5 gear shifter groove with the identification mark facing downApply molybdenum oil solution to the shift fork shafts and install them through the shift forks and into the left crankcaseApply oil to the shift drum guide grooves and install it into the left crankcaseInstall the shift fork guide pins into the shift drum guide groovesAssemble the crankcase halves (page 15-25)