The kill switch shorts out the ignition. There was a green wire (ground) and a black with white stripe wire that went to both the key switch, and the handlebar switch. make sure that the are not connected together. Then you should have spark. Connecting the black with white stripe wire to the green wire (ground) will kill the motor. The black with white stripe wire goes to the CDI.
ATCnut
82 185s - sold
83 200x (hopped up)
84 200x (stock)
84 70 (lost this one to the DMV)
85 70 (soon to have lights, a foot brake, and CDI ignition)
84 200es (parts trike) - sold
85 350X (the best)
85 350X (siezed motor, dream of a poweroll kit someday)
85 250sx (frame was trash, got parted out)
86 250sx (the tractor)
86 250sx (a nicer tractor)
86 250sx (an even nicer tractor)
87 200x (parts trike, its really rough, a dog was chewing on it for a while)
87 250es Big Red (the tank!!)