I have a 1990 XR250R and need to turn the tail light into a brake light. I found a description on how to do this for a XR400, but didn't know if it would be the same for my bike. Does anyone have directions on how to do this on a bike like mine or know if it is the same. I am looking at 2 different part numbers. One is a Dennis Kirk p/n 21-0369 (10mm x 1.25mm K&S hydraulic brake light switch) and the other is also a brake light switch from A.H. MacLaughlins p/n 44-0077. Any help would really be appreciated!