It been a few years .. coming down to home stretch .. question is have a black and yellow wire that should go to coil? just not sure where ..think yellow goes to positive not sure about black . Did remove points and upgrade to magnetic pick up .

 

Follow the wiring diagram for what ever brand ignition is installed.

 

The black wire isn't original, so without knowing what its other end is connected to it is not possible to say conclusively, but if it has +12V when the ignition is on, then it is most likely that both wires connect to the coil (+).

As Eric says, figure out what they're connected to and follow the aftermarket manufacturer's instructions.

- Eric

 

None of that looks factory. There is a yellow wire that comes from the starter and goes to the coil. It is yellow with a black stripe. This wire feeds 12 volts not 9 volts to the coil during starter operation to assist with starting. There is a black wire that goes from the coil to the distributor to power the points. There is also a double wire with one connector that is the run wire for the car. This has built in resistance to lower the voltage.

I will attach a picture of a coil on one in my yard.

Hope this helps

Larry