Grab a multimeter, a can of dielectric grease, and clean every bullet connector in the headlight bucket. You will solve 90% of your "weird electrical gremlins" just by polishing those 40-year-old terminals.

Ride safe, and keep that little twin-spark humming. Do you have a C70 wiring horror story? Did you find a purple wire where a brown one should be? Let me know in the comments below!

But there comes a day in every classic bike owner's life when the lights go dark, the horn goes mute, or the electric start (on later models) gives up the ghost. Suddenly, you’re staring at a rat’s nest of 40-year-old wires, wondering which color corresponds to what.