How does a 4 wire ignition switch work?
A ground or grounded at the unit mount is what the 4 wire ign key has. One needs to turn on the electrical and the other needs to unground the coil. The coil wire is grounds when you turn off the key.
Where is the bad ground on a motorcycle?
To answer your question, place one of the multimeter (on resistance/Ohms setting, with the battery DISCONNECTED) probes on a grounded point (frame, though the best option is the negative terminal on the battery if your wires will reach). Then, using the other probe, begin probing wires/connections/etc.
What gauge is Harley wiring?
The stock Harley wires are also 18g.
Can you run a motorcycle without a battery?
In modern motorcycles, battery is an integral part required to start the engine. … So, can your motorcycle run without a battery? Most modern motorcycles cannot run without a battery. If the battery is at marginal health and some life is still left in it, motorcycle can be started with a push/bump start.