Topic: CB750 wiring is kicking my butt

[Steveola]

I am trying to wire my 76 CB750K. I bought an aftermarket harness that is supposed to be a direct replacement for the stock harness. I have it almost finished but I can't get the start button to work, horn won't work, the turn signals come on but they won't flash and the coils are getting really hot. I am using aftermarket switchgear. Thanks for the help. 

[Rigid]

Thats going to be a tough one to address here.  Which aftermarket harness?  Which schematic are you using?  Does the harness match your year exactly or is it "universal"?

[Toxic]

Post a pic of the aftermarket switch gear or better yet a wiring diagram for them.
The horn button grounds out to the bars to complete the circuit on a stock 76.
The turn signals are they LED or stock.  The turn signals will have two connections to the stock harness each one will have a running light connection and a connection for flashing.

Where did you get this aftermarket harness.  No doubt one of the knowledgeable boys will be along soon with more help.

[bryanj]

Wiring changed a lot round about then

Do you have the headlight on all the time type

what is the switchgear from(pictures of internals and wiring colours would help)

[Steveola]

Hey guys, thanks for the fast response, the wiring harness was from CB750Supply and is supposed to be a direct replacement although it is for a 75, although all the schematics I have have slightly different colors. This bike was a basket case so alot of the parts are from various years. The switchgear are universal types that I purchased from a place online that specializes in them. I will post pictures as soon as I can...I'm not with the bike right now. I'm thinking the horn is not properly grounded.

[Steveola]

Also I forget to mention, the turn signals are not LED they are dual filament types. I will also post pictures of them as well. Thanks, Steve