Not quite sure about your response, but does it mean that they are 12 volt, but with positive ground. When you state unmolested do you mean that some are modified for different voltage and negative ground?
Thanks for the info and background. Now on to my no spark problem.
In my lifetime in the US many vehicles were positive ground. Most companies started the switch to negative ground between the mid 50s and late 60s. Norton, Triumph, and BSA were all positive ground.
Thanks, got it. Being born in the 50s, what I meant to say was in my adult lifetime, so as you said, from about the mid sixties forward, most vehicles in the states were 12volt negative ground. I do have an old Farmall tractor from the 40s that is 6 volt positive ground. But I will now remember: Norton = positive ground (earth, as other parts of the world refer to it as). Back in some of the elctronics courses I took long, long ago, there was discussion/argument about which direction, theoretically, electrons moved, either positive to negative or vice versa. Guess that disussion is better left to the scientists/engineers/geniuses, and in practice, ciruits can be made to work either way.
I'll have to get out to the shop to look and see.
Yes, if you go into it too far, you find that nobody is even sure what an electron is, so it’s maybe a bit pointless arguing that “electron flow” is more valid than “conventional current,” on an old bike.
Servicing and repair
