case help

Just fixed transmission(yz125) problem and joining the case halves back together. I can get them together easy enough with nothing binding, but as i torque the case bolts down I notice the countershaft has a little extra tension in one spot of the rotation. Spins freely for about 90% of the rotation and in one spot it requires a little more force to turn. Not much and i can still spin it with my fingers, but it is noticeable. With the bolts loose the problem goes away.

I am doing my best to tighten in a star pattern, but its difficult with the odd shape of the case. Could I be tightening the bolts too tight or in the wrong pattern? Any advice?

Thanks in advance,


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