We offer replacement CDI Units (Igniters), TCI's, ECU's and FI systems for most motorcycle and ATVs. If you do not see what the ignition module for your ATV, motorcycle, sled, or PWC, let us know and it is possible a custom ingition module can be made for your application. Ignition modules can fail for various reasons such as vibration, heat and electrical surge. When replacing any ingition module you will want to make sure that your battery is disconnected and your other dependent ignition parts have been tested. It is a good idea to test your stator pulsar coil and also make sure your neutral safety switch is in good working order. When installing the new part make sure you put the battery terminals on in the correct polarity. Reversing the wire polarity can damage your ignition module.