two wire kill switch black wire to a ground either on the wires from the mag or to the frame, blue wire tied into the mags blue wire. single wire kill switch tie the one wire into the blue wire from the mag. if you really want to you can use the white wire for the kill. All your going to do is ground out the signal wire from the mag which is blue wire some are a different color but all the engines black wire is a ground wire. very simple to do sounds hard but its easy. leave out the spark plug with the spark plug attached to the spark plug wire, lay it on the head so you can see the electrode push the bike with with the bikes clutch out or as if the bike is under power watch the spark plug it should fire with a blue spark now hold in the kill switch and push the bike you shoud not see the spark plug fire. If it doe this your good to go. There is posts on here somewhere with drawing for wiring up the bike I just don't know where.