Ignition Switch Short (ignition position ON, red wire to ignition goes dead) 1976 CB750F Super Sport

[RoachCafe]

I have power to the ignition (red wire).

When I turn the key to park, the tail park light works.

Now when I turn the key to on, the entire red (hot) circuit goes dead.
I changed the ignition switch out, same results.

If I pull the black wire out of the ignition switch connection, I have power to the red (hot) circuit again.

I tried grounding the harness black connection with the black wire disconnected from the harness, no change.

I noted that the black wire circuit grounds in through the regulator then out to the green wire to the chassis ground.

 

[drgnrdr750]

Green is ground, not black. A wiring diagram might help you trace the wires

 

[RoachCafe]

Yes, thanx, realized that right after posting this. Car mechanic.