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CB750 Wiring Issues

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Johnny4428:

--- Quote from: royhall on May 17, 2023, 08:52:27 AM ---That was my first thought, but what does it connect to, and why isn't it on the diagram. Incidentally, I did test the ignition key in park mode and the rear light comes on as expected.

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That’s same as mine, I didn’t have anything to wire up to at the front end, no side light. I can only assume park light was wired to running lights which these had initially.

royhall:

--- Quote from: McCabe-Thiele (Ted) on May 17, 2023, 08:54:08 AM ---
--- Quote from: royhall on May 17, 2023, 08:52:27 AM ---That was my first thought, but what does it connect to, and why isn't it on the diagram. Incidentally, I did test the ignition key in park mode and the rear light comes on as expected.

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You mention the rear light works in park mode what about the front side lamp?

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Don't have the facility on my replacement indicators for that Ted. I think it's staying unconnected.

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McCabe-Thiele (Ted):
If your headlamp has no facility to fit a side lamp would it be sacrilege to fit a separate subtle LED lamp?

SeanFD:

--- Quote from: royhall on May 17, 2023, 08:19:07 AM ---Although all is now well, a mystery is still lurking in there. There's a brown wire that runs from the 5A fuse to the back light, that's the feed to the rear light not the brake light. That brown wire is connected inside the loom to a brown wire that runs into the headlight bowl, it has a female connector on it. I have left this wire unconnected. For what purpose would a rear light feed run to the headlight area, it's also not shown on any diagrams. Pretty sure I haven't missed anything, but that said it's been put in there for some reason? Another mystery to keep you up at night.

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If you look at that thematic - done by one of the guys on the US site - I posted up above, there is a brown wire running from the ignition switch which branches off backwards BUT also has a branch going to the headlight bucket with an unused female connector at the end.

Oddjob:
If you replace the headlight at some point in the future and you get one with a parking light or side light at least you know where to connect it to. The existing headlight halogen or that god awful big normal bulb?

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