Scott--The "grinding" in the instructions is the "chamfering" I referred to.

Since all the brands of sleeve are the same design--probably from the same source and reboxed--I would say you should chamfer for all brands. If you do not you probably will run into that problem remounting the flywheel.

(Wow, I did not know we could not repair stuff like sparkplug holes and crankshafts)

Cheers