Hi there ,,, I have been laid up for a while but I built and almost completed a magnet charger   magnets in the wico magneto can be charged  ,  reverse charged , and reversed again , as many times as you want ,  but require special  " adapters to insure the integrety of the field strength ,   .   I wound about twenty pounds of  number 18 magnet wire around a couple of soft iron cores that I turned out on a lathe ,,   when hooked up to a fourty eight volt golf cart,  the tools and metal stuff from about three feet away all jumped to a nice piece of artwork on the bench . ( never been so scared in all my life !!) Phelon magnetos have alnico magnets  ( aluminum , nickle , cobalt )magnets that are supposed to be charged while they are being cast hot , ( don't know why ) and I am still trying to figure out how to charge them,   They do not like heat and silver brazing them back on after they fall off will certainley weaken them ,, reverse charging won't hurt , as the magneto is essentially an A.C. item also the lioghts  , Like pulling a non-polorized plug out of the socket and turning it upside down .    All the best , Larry Brown.

Hi Mike ,,   I built the engine for that bike and built up another engine  as payment to the guy who painted that bike ,  He was known only by the name of " Ski " of  " Ski's Auto world "  hope all goes well     Larry Brown.