Main Motorcycle: 2018 T120
Join Date: Apr 2018
Location: Long Beach, CA
Other Motorcycle: 2018 Tiger 800 XRx
The brake light comes on via the front or rear microswitches. The front switch is located on the front side of the brake reservoir, down low. When the switch is in the normal position (brake light off) the brake lever has a tang built into it that depresses the button on the switch. When the brake lever is applied, the tang lifts off the switch and the brake light comes on. You can hear the switch click when it is operating correctly.
Either the switch is bad or the lever you added doesn't have the tang on it. You can physically test the brake light via the button on the switch.
Last edited by tahtye; 09-14-2019 at 11:49 AM.