Kinda reminds me of trying to get a computer to act right, lol. I changed out the crankcase for the other one i have that is the same and am still getting some noise, but now it seems to be at the top and the bottom of the stroke. I feel no resistance at all to going through a complete 360 degree rotation so maybe I am over reacting a little. Or not I was thinking that maybe I had dried out the bearing by soaking em in gas and so I put a drop or two of two stroke oil on them and that seemed to help or maybe it was just masking the problem. I'm gonna keep messing with it but have few parts to keep eliminating things.

Bill