Im gonna try one more time, look under KICKSTAND, on the edge of engine block are wires 2 sets of wires, one set is attached to kickstand switch, a couple inches from that kicks switch you will see another black thing that goes into engine and 1 8mm shiny bolt holds it in engine, this is the speed sensor, i sent pictures but Maybe this is clearer. Everyone that has replied are good men, that help alot of people year after year.