Yes it does, or at least it did on the ignitions I've installed (if I remember right, it's been like 4 years...). On the ignitions I've installed you got a few separate brackets and the sensor loose that you installed into the bracket then press in the little wedge thing. What you can do is press the magnet on the engine however you are doing it then put power to the ignition with the spark plug installed in the boot and pass the sensor over the magnet, if it doesn't fire then flip the sensor over and it should fire, and make sure to assemble that way.