2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 312Get this manual
CRANKCASETRANSMISSIONCRANKSHAFTBALANCER ('04'05) LEFT CRANKCASE BEARING REPLACEMENT Before removing the bearings, heat the crankcase evenly using heat gunRemove the countershaft collarRemove the left countershaft oil sealCOUNTERSHAFT OIL SEAL
Remove the screws and set platesDrive the countershaft bearing out of the left crankcase
COUNTERSHAFT BEARING Remove the mainshaft bearing using the special toolsTOOLS: Remover handle Bearing remover, 17 mm Remover weight 07936-3710100 07936-3710300 07741-0010201 or 07936-3710200 or 07936-371020A (U.S.Aonly)