I just got my grandpa's 71 CB350 on the road again after sitting for 20 years! Its a blast! I was concentrating mostly on the mechanical issues of the bike and didn't pay too much attention to electrical issues. Well, now that its on the road, my attention turns towards the electrical problems it has.
First of all, let me say that the following problems could be related, however, I suspect that they are two separate problems.
The first problem is with the tail light. It is not lighting. The brake light is fine(on the rear brake, but not on the front ), but the tail light does not light at all, ever. I did some troubleshooting and the problem IS NOT from the brown connector in the headlight to the tail light. It works as long as there is a hot wire hooked up. The problem is, there is no corresponding brown wire(male) to hook up to it! I unplugged everything in the head light to try and find something that I put together wrong, but did not find the illusive missing male wire!
My second problem is with the turn signals. My back lights turn on, but do not blink, and my front ones do not turn on at all. Both front and rear turn signals used to work perfectly, however they have recently stopped. Both side are grounded well, and they are both receiving electricity. Everything I have looked at suggests they should work. Good, ground, good hot wire, etc. My dad(who has been helping me on the bike) insists that it is not the turn signal relay, but I am suspicious of it anyway. Does anyone have any suggestions or ideas on this issue?
So here's a recap:
1.) Does anyone know where the missing (male) tail light wire might be/if it is a different color than the brown female wire that leads directly back to the tail light?
2.) Could the turn signal problem be the turn signal relay/if not, what might the problem be?
Hi Robert,
The brown wire should run from the tail to the ignition switch on this model.At the ignition switch the brown wire connects to the brown/white wire witch goes to the headlight switch. Check to make sure you have power at the brown/white wire from the headlight switch once it is turned on, if not the switch may be bad. As for the turn signals go it sounds like an open in the circuit. You want to check continuity from the bulb socket to the connector at the end of the wire. The light blue wire is for the right turn signal and the orange is for the left. You also want to check the ground side by checking continuity between the bulb socket and the green wire from the main harness. If they have low or no continuity check for corroded connectors or broken wires.
I hope this can help.
Tom
), but the tail light does not light at all, ever. I did some troubleshooting and the problem IS NOT from the brown connector in the headlight to the tail light. It works as long as there is a hot wire hooked up. The problem is, there is no corresponding brown wire(male) to hook up to it! I unplugged everything in the head light to try and find something that I put together wrong, but did not find the illusive missing male wire!