I have a mate with a Cota problem. The head seems to be secured with Cap head type screws that have been stripped (rounded) out. He is able to set it up in a mill and machine the heads off and then hopefully lift the head off and then wrestle with whats left of the screws to get them out of the cases. Can anyone advise of a similiar problem or solution? Also he is looking for a magneto cover. Cheers Jerry