Negative ground on mine....
I Eric
It is possible that originally they were positive ground but all I have worked on are Negative ground.....which is what I have on my C15a..... and that is how I got it but would not vouch that it is accurate.
At least my starter does not run backwards......
Bob
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Bob Carriere....B.T.B
C15a Cab 11
Hammond, Ontario
Canada
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