So A few weeks ago I was riding at the dunes and I heard a noise when I was slowing down. The noise sounded like it was coming from the counter shaft area. I pulled the clutch in and still made the noise. Sounded like a bearing squeal. I shut it down and started back up with no noise. I rode a little longer and the noise came back so I went to camp to check it out. My oil crankcase was overfilled with oil so I figured I had a seal go out. Any ideas on what the noise could be? I'm thinking counter shaft bearing but I could be wrong. I have the cases split and getting ready to put in a new crank, HC piston a cam and a ported head with ss valves. Is there anything I should look at or just replace since I have the cases split? Thanks.