While fixing oil transfer on a 09 450 exc with 64 hours (oil pump cover O Ring) we had the right side case cover off and performed the surgery. Ended up breaking a bolt in the inner clutch hub, and long story short the the cover is still off the bike while a new clutch hub gets here... The shift lever will not engage the shifter drum. There is play in the shift lever but it will not go as far as to move the drum on the right side of the engine. This should be independent of whatever situation the clutch is in, correct? Any ideas why this is happening ? Any ideas how to fix it?.. Clutch hub will be here Wednesday and hoping to not have a second time consuming problem to deal with.