I think there is a certain wire brush wheel. Likely very fine. Bob Logue had told me that he knew the original wire brush or steel wool to use, but he didn't tell me which one. Maybe take a real fine wire wheel or some 00 steel wool and test it on some aluminum or a spare cover from another bike.What finish is on the valve covers and clutch cover?
It is not chrome, it is not just polished as the valve covers are frequently seen to be peeling.
If you are to refinish the valve covers and clutch cover what is the best method?