2007-2009 Honda TRX300EX TRX300X service manual, Page 157Get this manual
CLUTCH NEEDLE BEARINGOIL SEAL REPLACEMENT Inspect the crankshaft oil seal for wear or damageRemove the snap ring and replace the crankshaft oil seal with new one if necessaryOIL SEAL
Inspect the reverse selector shaft oil seal for wear or damageReplace the reverse selector shaft oil seal with new one if necessary
Inspect the clutch lifter arm shaft oil seal and needle bearings for wear or damage Replace the clutch lifter arm shaft oil seal and needle bearings with new ones if necessaryApply engine oil to lifter arm bearings