Topic: Stop light 1976 550 F

[Tancdoc]

Hello,
My stop light does not work when I actuate either the front or the rear brake. The tail light works fine. I thought it was a bulb problem, so I changed it to a new one but no difference. Where to look next to solve the problem? Interesting enough I have the same problem on my 1975 400 Super Sport.
May it be infectious
Thanks for the advice.

[calj737]

Should be a green wire with yellow stripe feeding the brake light circuit. Confirm that when that wire gets grounded, the brake light comes on (tail light).

[bryanj]

Go to switch near kickstart and follow switch wires into rubber boot, black should have +ve 12v with ignition on and if so and you connect black and yellow/green light should work

[Greyhound]

Additionally, you can grab a multimeter and check to see if you’re getting power at the brake light wire when you actuate the brake pedal/switch (this will eliminate the possibility of a bad socket and/or if the bulb is bad/incorrect).

If you don’t power at the brake light, then start working your way back along the wire, checking every connection until you find where you finally get a hot wire.

[Robbo]

You are using the correct dual filament bulb…???


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