XR650R Brake Light Wiring

12 replies to this topic
  • zxabx

Posted March 20, 2008 - 06:38 PM


I just bought a 2000 XR650R. I Can't get the brake light wired in correctly. I just bought:
- Baja Designs Dual Sport LED Dropdown Taillight
- K&S Dual Sport Hydrualic Brake Light Switch
from xrsonly.com. From the bike I have a green wire and a brown wire. From the tail light I have a red, black, and blue wire. From the brake switch I have a red and a black wire. What the heck goes where???

  • yan67

Posted March 21, 2008 - 02:37 PM


does your bike have a street kit kit on it already? if not then i don't think you will be able to power the brake light switch withoutthe extra wires from the harness. YAN

  • Billahjack

Posted March 22, 2008 - 09:44 AM


I'm about to fix my jerry-rigged wiring. I'll let you know if I find out. My bike is running battery only and I'm about to install a rectifier so I can run the LED brake/running light.

  • zxabx

Posted March 23, 2008 - 09:48 AM


I do not have a street legal kit. I think I saw posts where the brake light will work with out a harness... I just can't figure mine out. Well I guess its off to pay the motorsports shop :confused:

  • moleculo

Posted March 23, 2008 - 10:26 AM


Attach the green wire from the stock harness to the black wire from the taillight.
Attach the brown wire from the stock harness to both the red wire from the BD taillight and the red wire from the brake light switch.
Attach the black wire from the brake light switch to the blue wire from the BD taillight.

  • zxabx

Posted March 24, 2008 - 10:53 AM


I tried the above wiring. My tail light is on, but no brake light. Is it a possible problem with the switch? I topped off my brake fluid..... :confused:

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • yan67

Posted March 24, 2008 - 07:07 PM


do a continuity test on the brake light switch and this will let you know if it is good or not. if it's good it will have continuity when brake pedal is depressed. YAN

  • zxabx

Posted March 25, 2008 - 11:05 AM


Ahh the continuity test showed a bad switch. So I have a new switch on order. Brand new K&S switch doesnt work..... I used a different company this time. Thanks for the help, hopefully the new switch works!!

  • Horri

Posted March 25, 2008 - 11:26 AM


If you have a switch which activates the brake light from the front brake lever and the lever is not depressing the small button your brake light will be on permanantly..The front lever needs to push the button down to stop the brake light being on.ie you pull the lever it opens the circuit,,you release the lever it closes the circuit.

  • bigdanner

Posted March 25, 2008 - 02:36 PM


Just can't get enough of this wiring stuff, can you Moleculo?

  • moleculo

Posted March 26, 2008 - 06:24 AM


Just can't get enough of this wiring stuff, can you Moleculo?

Think of it as a gradual breakup from a long relationship...

  • Black Pig

Posted December 27, 2015 - 05:15 AM


What colour feeds the front brake lever on a standard UK XR650R harness please?

  • Horri

Posted December 29, 2015 - 06:24 AM


My diagrams for the 650r are not flash..green/yellow is one wire..Bl is the other Blue,,they should both be interconnected to the rear brake switch which will be connected into the loom under the seat on top of or near the airbox top air intake slot..

Related Content

Want to add a kickstart to your XR650L?  Here's how - last post by clc3251

Want to add a kickstart to your XR650L? Here's how

  • 1 reply

DirttyPig 2005 Xr650l Prroject! by braapmebb1moretime

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • 22 replies

Engine Loping/Sputtering by tcaldwell

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • 4 replies

2015 XR650L Squeaking noise by Crayjay

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • 3 replies

ignitech programmable XR650L CDI by brianhare

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • Hot  60 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.