Topic: Brake Light Wiring

[turkey4me]

I have a 76 CB750 F and have a question with the rear brake light wiring.  Trying to install an after market brake light.  The light has one bulb and two wires, positive and negative.  The bike wiring harness has 3 wires; Brown (positive power), Green (ground) and Green/Yellow (rear brake switch).

I don't have the original brake light to compare so how should I hook up the new tail light so the brake light functions correctly when brake pedal is pressed?

[ev0lution7]

uh.... make sure you new ligh is a 1157 or it wont really work....

if it is... then more than likely thos 2 wires are 1- tail 2nd- brake and the "casing" is gound

remember on our SOHC honda's Green wire is ground and brown in tail and green/ yellow is BRAKE!

[turkey4me]

Thanks for the brain fart!  I fabbed a ground wire from the light frame to the wiring harness and sorted this out.

[SUELZER]

could you tell me a little more about your solution?

i also have 2 wires coming out of the light i'm trying to install into the 3 wire setup on the harness. is it as easy as hooking in a ground wire to something to make it all work?

i'm desperately searching for a red 2 1/2" round dual filament light with the 3 wire setup, as i've already cut the hole in the back of my seat.

thanks for the info