10-07-2014, 10:52 PM
tranny bearing. i remember when i took the engine apart, there is 2 shafts in the tray, one that is moving all the time with the sprocket and one that is connected to the clutch(that disengage when you pull the clutch). my guess is that a bearing on that shaft is dead/close to be dead. maybe when you changed the oil you let in a bit of dirt and that this dirt when up to the bearing or that maybe you didn't put enough oil in there and that this particular bearing had a particular weakness. hope i'm dead wrong cause this means splitting the base...