ok, so heres the deal. i got my first bike a few months ago and as we all do i went crazy with accessories. just bought my undertail from ebay and it looks fine (though there is a small gap that i can fiber fill). but here's my issue. the undertail goes so far up that i have to remove my stock brake light. so i have all these wires hanging and on the undertail there are 2 LED brake lights each with 4 wires comming out of them (1 red, 1 black, 1 white, 1 green) i don't know **** about wiring. and im trying to not only wire my stock brake light wires (which have only 3 wires) and my turn signals (each having 2 wires) into these new lights.....does anyone have a diagram on what the hell exactly i need to do to make this cluster-**** of wires work as not only my brake lights but also as my turn signals???? im clueless so please speak in dummy english. thanks y'all

ride safe

 

The easy answer is to contact the manufacturer of the undertail.

 

can't, i tried and he is just a wholesaler. he knows nothing (or so he says)

 

You need to get an integrater for the rear if you are trying to brake and signals in the same light. It is basically a little black box with three wires going in and two going out to the brake lights. If you are using LED's try this site.

www.customled.com

 

ok--so thanks to the help of Turnin20s i figured out what wires represent what on my undertail.....now i need to know what the **** the wires do on my stock wiring harness......there are 3 wires that ran into a plug that hit the stock brake light(s). one is green, one is brown, one is green with yellow tracer. what do these wires mean? which one is the ground, which one is the running light and which is the brake light? any help????

 

Go to the Hotbodies website, link to the F4i undertail page. You can download installation instructions. In the instructions you will find what the stock wire colors represent.

 

from the bike....
green with yellow is ground
brown is running light
green is brake

from the lights....
red is brake
black is ground
green is signal
white is running

blue wire on right signal to green
orange wire on left signal to green
you don't need the ground on the blinkers

 

i have the same exact undertail (i think) on my 02 f4i mine came with a diagram if i can find it ill email you a copy. i think it goes red=yellow/green black=green white=brown and green are your signals there should be an orange and blue with little squares on them. orange is left signal, and blue is right. If you have the same one i have watch that bar n the subframe that goes acrossed my l.e.d.'s were touching that bar and pulled the wires out and it was a bitch to get them to work again(but i did).i put hot clue on the back of them as a bumper but silicon will work so good luck