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CB 750 Power problem

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zonson

CB 750 Power problem

I had this under a diff. thread but something new came up. My main issue was that my headlight wouldn't work, thought that it was a ground wire problem, well today ran a wire from the battery to the light and it came on, so the switch was thought to be the problem, then my blinkers stopped working after I cleaned the switch. After this... for some strange odd reason my battery was about dead. Hooked upo a charger and poof, head light blinkers and all works, still no light for my highbeam indicator though. Any thoughts or replys is good.

TOOLS1

Re: CB 750 Power problem

Administrator

Dead battery. I have seen this before. The high beam indicator would be a whole nother problem. Check the bulb, and voltage to it.
TOOLS

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1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)

zonson

Re: CB 750 Power problem

on what the light for my indicator? well guess that makes since, its a 77 with a lot of the original or 80's-90's ome parts in it still.

cdaiscool

Re: CB 750 Power problem

Yes, for the indicator. Check power to the indicator itself. If its got power, the bulb is likely gone.

Tools is one of the best diagnosis people here. So go with what he has to say.

Turbos, Hondas, 4-bangers, what could go wrong?

Shiny: [...] Considering the weather you've had to put up with I'd say you get an Iron Butt award and a Frozen Nipple trophy to go along with it. First time I've ever posted the word nipple... it ends here.

dyelawn

Re: CB 750 Power problem

In reply to this post by zonson

Still, check that (likely green) groundwire and ALL its connections in the headlight bucket. Clean all the male couplers 'till their shiny and completely corrosion free, spray with some water-dispacer product and reconnect. I have been having similar issues on my 82 C and recently solved the three month nightmare (which, I might add, did involve the headlight, turn signal lights, highbeam indicator light, neutral switch, and more) by finally finding corrosion in one of the groundwire connections.

I agree that it could be a dead battery, but I promise checking that wire will be worth your time too. You might as well clean your connections around your battery and check your positive wire leaving the battery terminal as well. Amazing what a little bit of acid and some sandpaper can do for the health of your electrical system.

zonson

Re: CB 750 Power problem

So I charged up the battery and everythoing works, well I think I blew the bulb for my tachometer, but indicator light comes on and all is ell. Will check out the green wire issue still, plus the way the red it wired to the battery, oh so much micky mouse done to this electrical system. Well thank you all so much, and enjoy the ride!