Primary clutch bolt not centering

[JMCX]

When tight I see that the head of the bolt is usually off centre in the end of the clutch. The shoulder washer is too sloppy on the bolt and in the ID of the clutch. It seems to me this could cause significant imbalance at 8k RPM. Does someone make a precision centering washer or maybe a plastic insert to keep the bolt aligned?

 

[sled_guy]

It is so close to the centerline of the rotation, and the mass of the clutch compared to it makes it insignificant.

sled_guy

 

[JMCX]

I understand that distance from center-line is a huge factor in rotational balance but look at how little aluminum they remove to balance a clutch. Surely a steel bolt wobbling even a little at centre line is not good. Ever have a carbide burr in a die grinder get a little bent? You can feel it. And its a fraction of the weight. I might have to get my own washer machined up just to satisfy my analness. A guy I know had his '12 Pro crank shear off way out in the middle of nowhere and I want to do all I can to ensure that's not me.

I already have clutches coming from Dan.

 

[sled_guy]

The effort to get that washer done is not too much if it means peach of mind for you when you are riding.

sled_guy