Purdy Swoft covered most of the things that need to be changed to run on 12 Volts positive or negative ground. Would recommend that you change the Bendix on the starter to the newer type as the 6V starter motor really spins on 12 Volts. If you would like a list of the bulbs for 12V or 6V and other electrical info send me an email and will send it to you. My email is
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