I have an old 1986 CG125 6V motorcycle that needs patches/extensions to the current wiring loom. What gauge wires do I need to use (amps and thickness)? I have the Haynes Manual but cannot find the details of this anywhere. My Wiring is the same on Page 103 for Early Honda CG125 models.
Get a set of wire ferrules. Strip back some insulation and use the ferrules as a gauge to measure the thickness of the conductor.
Buy automotive grade wires. In doubt use some slightly larger diameter.