I am fixing up a '99 wr400 I had sitting in the garage for 5 years and I am having trouble getting the brake light to work. It has a hydraulic brake light switch on the rear brake. It is a plastic piece somehow attached to the big nut that holds the hose piece down in the rear brake lever assembly. When I hold the two wires together going into the piece, the brake light works... leading me to believe that the problem is inside the switch somewhere. Does anyone know exactly how this thing works? I pulled the nut off and I can't really see anything. It looks like the plastic thing on top MIGHT screw in but I am afraid to unscrew it and find out that it actually isnt a screw in. Any ideas?