Topic: led tail/brake question

[admiket]

i installed a led tail/brake light on my 1975 CB550 when i did my cafe tail. with the head light off, when i hit the brake both brake and head light light up. if i unplug the tail light every thing work like it should. my question is this going hurt anything? do i need to run a power from the batt to tail?

[gilesclement]

probably wont hurt anything but you've clearly go some wires mixed up.

[JS550]

yeah, you need the wiring diagram. The headlight should not do that. Sounds like your headlight is wired in to your brakelight in the headlight bucket.

[admiket]

if i plug my stock light in i have no problems. the led light is a 12 bulb light, 6 tail and 12 brake. i think the brake is feeding power trough the tail circuit.

[JS550]

  Im not sure. But have you double checked your connections in the main hook up in the hl bucket? My brother has an LED on his 550 & when we hooked it up the brake light works great but you only have a taillight at about 1500+ rpms. It has a blue dot that stays light but the rest of it doesnt untill the engine revs are up. I would take a look at the wiring diagram though before I wired something direct to the taillight.