honda305.com Forum

Have you pulled the flywheel and checked/cleaned the points? Also clean any rust from the inside of the flywheel. The coil on the left or closer to the rear is the primary coil, the other coil is the lighting coil.

No I havent. I was looking for 6v at the points and trying to trace wires. No ...

Rizingson wrote:The C105 will run without a battery. The rectifier is used only to charge the battery, in fact the lighting is AC except for the brake light.

Thanks for that info. I have no spark, so I guess I need to look at my ignition circuit also.

Yes..test it like any other diode. Best way is to use a battery and a test light. It should permit current flow in only one direction, kinda like a check valve. If it's bad. you can simply replace it with a single silicon diode like 3 amps or so.

It's open both directions. Is it a Zener diode ...

Is this rectifier testable, as in a diode? Can I check if it's good or not? [/img]

The c100/c105 is negative ground, but the ignition switch switches the negative side of the circuit rather than the positive. Please feel free to PM me if you need more info. I've had a few cubs myself.

Thank you for clarification, that is most helpful. Especially about the ignition switching ...

Seadog wrote:See this post on the VJMOG forum:

http://vjmog.com/ftopict-10301.html

Thank you, very helpful

I can't seem to find a wiring diagram in all my books or net search for this early little bugger. Is it positive ground??? I thought I fixed it with a broken wire on the ignition switch, but that didn't get it. Can someone help me out here?