by Arnold » Thu Feb 18, 2010 10:14 pm
On mine (different model), it's located near the clutch arm pivot point (covered enough that you won't accidentally kick it). Small switch with 2 wires coming off it. When the clutch is depressed the switch is electrically made. Check it by putting a meter on the 2 terminals and then pressing the clutch in. If it's working you will see the meter change.
The switch could be stuck in one position. It also could be out of adjustment.