Below is the inside of my Wico magneto. I inherited a lot of questionable wiring that I've guessed out, but one still has no home. In the pic below you see two wires coming into the ignition system. One attaches to the points which I'm thinking is the ground that hooks up to the ignition switch. The other was coiled up under the bracket and attached to nothing (I don't know where the other end attaches either).
Can anyone help me out?
Thanks.
It's a 1952 Model M.