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CA77 horn wiring connections - Help!

Charging System, Wiring, Lighting
LOUD MOUSE
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Post by LOUD MOUSE » Wed Sep 16, 2015 8:46 am

It will be a BLACK wire on the same lead as the BLACK Coil Wire. ..............lm
Bob15 wrote:
Seadog wrote:Bob, the wiring for the horn is in the wiring harness. two wires should be hanging down in the area of the horn for connection. Wiring for the switch should be within the handlebar and connected to the main harness in the headlight bucket. Has that been cut out?
The wire from the horn button is there but the hot wire has been cut out. I think I'll need to run a new one but am trying to figure out the correct place to pick up power.
I may try and pick up power from the coil as suggested above to see if that will work.

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Hamamatsu Nippon
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Post by Hamamatsu Nippon » Wed Sep 16, 2015 11:31 am

The horn, ignition coil and brake light share the same black wire circuit.
1967 CA78
1965 CM90

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Seadog
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Post by Seadog » Wed Sep 16, 2015 1:23 pm

Bob, my harness is out, so I took this photo to show you the horn leads. The other connections you see are those within your headlight bucket. I think it would be difficult to break those horn leads off. Look inside the frame for them. They might have been tucked inside. If that "pigtail" has been cut, I would not leave it that way.
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Bob15
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CA77 horn wiring connections - Help!

Post by Bob15 » Wed Sep 16, 2015 2:03 pm

Thanks to all for your great responses and thanks to Seadog for the pic. I definitely don't have that pigtail for the horn. I searched all over in the frame and under the tank and behind the horn mount but someone has removed it and then taped up the wire harness with electrical tape. Who knows why people do what they do but I've got to find a way to have a working horn in order to pass state inspection for licensing.

If I take the black wire that comes down from the horn button and attach that to the horn and then run a new wire from the other side of the horn to the coil that should work shouldn't it?

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Seadog
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Post by Seadog » Wed Sep 16, 2015 4:41 pm

Yes.

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