I have an older 55hp chysler that I cannot get to shut down. I have the wires color coorinated to the block but there is one blue wire coming from the ignition that will kill one coil when the key is turned to off. I've moved the wire to either coil spot on the block and can only manage to kill one cylinder??? If I jumper to the other post they will both fire at the same time so, what to do? Right now I have to choke to kill the motor and it is running so good it barley shuts down.