One wire alternator problem

67Dart273 said

Yes, here's the thing

The "run" wire and the brown "bypass circuit" (known as IGN1 and IGN2) come from the ignition switch.

The blue "run" wire GOES DEAD during the time the key is twisted to "start."

The brown bypass / IGN2 originally hooked to the coil side of the ballast and supplied full battery voltage to the coil during start/ cranking.

Click to expand...

I'll give this a shot tonight. When I went to install my MSD box I tried hooking it up to both the wires going into the ballast resistor separately. So when I cranked the voltage dropped and the MSD wouldn't start. I ended up taking the coil + and using that for my switched 12v. This of course left the ballast in line.

Just so I'm 100% clear before I do something stupid. I unplug both sides of my 2 post ballast resistor. Wire them together with the switched 12v for the MSD box. Right? I'm changing the motor out this weekend so I'm sure I'm over thinking everything at this point.