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Author Topic: Interesting electrical issue.  (Read 1500 times)

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1055

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Interesting electrical issue.
« on: April 02, 2011, 11:35:58 AM »
81 cb650c. When my turn signal switch is in neutral, my right side signal stays illuminated. When I move the switch to the right.. it goes out. When I move the switch to the left.. the right illuminates. None of them blink. Also.. can't find the blinker relay? Not were my service manual says.. and im missing the wiring part of it. Fail.

-Tucker
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Offline phil71

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Re: Interesting electrical issue.
« Reply #1 on: April 02, 2011, 11:50:04 AM »
I don't know the '81 at all.. does this bike use running lights? check all your bulbs, and espcially sockets for rust.
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Offline TwoTired

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Re: Interesting electrical issue.
« Reply #2 on: April 02, 2011, 12:01:42 PM »
It's all stock?

Check all the ground connections.
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Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.

Offline tomsweb1

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Re: Interesting electrical issue.
« Reply #3 on: April 02, 2011, 12:17:37 PM »
Sounds like your left bulb is out, and your relay is fried. Can't tell you where it is, though. Where mine is is under the right side panel, near the top. If it's still oem, should be a little black box.
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Present: 1978 CB750A, 1978 CB400A, 1983 Nighthawk 550, 1984 CM250C

Past: 1977 XL100, 1982 KZ1300

Offline Hush

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Re: Interesting electrical issue.
« Reply #4 on: April 03, 2011, 01:47:08 AM »
I would guess that the flasher relay has been either removed or is shorted internally.  Find out where it should be located and trace it back.
Hint here for future posts on your 650, include "650" in your header and the 650 guys'n gals will know to chime in. :D
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I think the thing I most like about motorcycling is the speed at which my brain must process information at to avoid the numb skulls who are eating pies, playing the ukulele, applying make-up etc in the comfort of their airconditioned armchairs as they make random attempts to kill me!!!!!!!

Offline MoMo

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Re: Interesting electrical issue.
« Reply #5 on: April 03, 2011, 01:58:32 AM »
Quote from: 1055 on April 02, 2011, 01:22:44 PM
Sorry I should say the fronts stay on.. the rears have no power. And in a moment of not thinking I disconnected both signals from the harness and can't for the life of me remember which power wire is to which side. Lol. Oops!


-Tucker


Left is always orange, blue is right on older Hondas. The t/s relay is a round can about an inch in diameter and a bit longer under the right side cover...Larry
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Offline tomsweb1

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Re: Interesting electrical issue.
« Reply #6 on: April 03, 2011, 10:19:57 AM »
If you're not finicky about being OEM, I just went down to my ocal auto parts store and bought an electronic 12 volt signal relay for about ten bucks. Works great.
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Present: 1978 CB750A, 1978 CB400A, 1983 Nighthawk 550, 1984 CM250C

Past: 1977 XL100, 1982 KZ1300

Offline Hush

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Re: Interesting electrical issue.
« Reply #7 on: April 03, 2011, 03:15:44 PM »
Yep any 12 v relay will do it.
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I think the thing I most like about motorcycling is the speed at which my brain must process information at to avoid the numb skulls who are eating pies, playing the ukulele, applying make-up etc in the comfort of their airconditioned armchairs as they make random attempts to kill me!!!!!!!
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