There is a lot of how to's on this site for conversion to a 12 volt alternator. Use the 12 volt single wire alternator.
Voltage regulator is contained in the alternator. 6 volt starter works well on 12 volts. You will need to change the 6 volt light bulbs to 12 volts. 6 volt switches work well on a 12 volt system, no need to change.CapeCodCubs wrote:What else is needed. Does the voltage regulator, starter and light bulbs, light switches need replacing?
Edit: You need to throw in the price of 2 or 3 additional 12 volt batteries in my estimated longevity for the 12 volt conversion.