2001-2005 Honda TRX250EX Sportrax TRX250EX Factory Service Manual, Page 61Get this manual
LUBRICATION SYSTEM INSTALLATION Install the two dowel pins into the front crankcase
Install the oil pump assembly with the arrow mark fac-
ing upInstall and tighten the oil pump mounting bolts
Install the oil pump chain onto th sprocketInstall the oil pump sprocket aJigning the rotor shaft boss with the groove in the sprocketInstall the snap ringNOTEInstall the snap ring with its cham fered side facing
the sprocket