I have a Bolens 410 tiller.    It has a 2 stroke motor.  It starts easily but won’t shutoff using the on/off switch.   I have tested the switch and the two wires going to the coil.  The switch is good and the wires are sound.  So, I think the problem is in the coil.  But the part is no longer available so I am looking for another way to stop the motor.  I can make it stop by fully choking the carb, and I have pulled the spark plug wire off.  But is there a way to wire up a kill switch?  What if I connected one of the wires to the coil and the other to a ground?  Could this damage the coil?