2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 300Get this manual
CRANKCASETRANSMISSIONCRANKSHAFTBALANCER ('04'05) INSTALLATION Apply molybdenum oil solution to the balancer shaft ball bearing and needle bearingApply grease to the balancer shaft oil seal lipInstall the balancer shaft into the crankcase at the angle as shown
Install the sunk key into the key groove in the balancer shaft