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Need help w/electrical gremlin.
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Need help w/electrical gremlin. - October 11, 2007, 11:57 PM

Working on my '82 CB750 DOHC Cafe project. Bike originally had a faring on it, so the original electrical wiring is either altered or difficult to follow. I'm wiring new turn signals to the front. Fuse is fine, rear turn signal bulbs work but don't flash, front signals come on like running lights, but don't blink. Trying to engage a turn signal turns off one, or both front signals, depending on which way you push the thumb switch.

I've got my own multimeter and a Clymer's manual with the "alleged" wiring schematics but I'm a little stumped. Anybody have any recommendations for someone good at ferreting out electrical gremlins?


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October 12, 2007, 07:24 AM

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October 12, 2007, 07:27 AM

I rewired my 78 CB750 cafe; the original wiring was junk. Send me a PM.


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October 12, 2007, 07:32 AM

Bad flasher relay.
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October 12, 2007, 07:41 AM

Quote:
Originally Posted by nunyadambusiness
Bad flasher relay.
Damn. I was just about to post that.


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October 12, 2007, 07:32 PM

I'll pick up a new relay and see. Thanks for the tip. I may still hit someone up for help. Thanks for responding!


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October 13, 2007, 04:27 PM

Let me know.
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October 13, 2007, 10:20 PM

If it is a stuck relay, you can possibly diagnose it without replacing it first. If you give it a good tap while the circuit is energized, you might be able to shake it loose. If it starts working, it's definitely the relay, and you'll have to replace it. If it doesn't start flashing, it may or may not be the relay. You'll still have to replace it, just to do proper troubleshooting. Either way you'll have to get that relay, but at least you'll know it was the relay and not something else that is just working again coincidentally after you replaced the relay.


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