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Re: 1967 250 Scrambler, Just found that the alternator rotor was set at about 40 degrees behind TDC. It is suppose to be at 32 to 36 degrees Before TDC. I think someone did not realize that the motor rotates counterclockwise when viewed on this side. Sure could explain a lot of the ignition problems this poor old gal had years ago. Are there any suitable AC coils available in the USA? Thanks to for the info on the supplier in England.
I still can figure out why the coil negative side gets grounded, instead of going to the points/condenser.
Thanks again to all for the help.
Coop

Coop,

AC coils are here http://www.guzzino.com/eletricalparts.html available.

Coop, it may be a lack of sufficient clarification.
On a negative ground system, the neg post of the coil gets grounded by the closing of the points. The spark is induced by the collapse of the magnetic field when the points open.
So yes, the neg terminal gets grounded.

Intermittently

To quote the fat sheriff, "What we have here is a failure to communicate".

CZ