CDI Modules for Snowmobiles

Snowmobiles have become very popular and Monster Scooter Parts offers the CDI modules for snowmobiles to fit on your model. A new replacement snowmobile CDI module (also known as a snowmobile ignitor) will often be the solution to a poorly operating electrical system.

CDI modules for snowmobiles are usually compatible with numerous gas engines. Please compare your snowmobile CDI module with the pictures on each item page carefully prior to ordering.

If you don't see the snowmobile ignitor or any other part you need, just call or email us and one of our sales professionals will be happy to help get you the snowmobile parts and accessories that you need.

What is a CDI module? A typical CDI module consists of a small transformer, a charging circuit, a triggering circuit and a main capacitor. First, the system voltage is raised up to 400-600 Volts by a transformer inside the CDI module. Then, the electric current flows to the charging circuit, charging a capacitor. A rectifier inside the charging circuit prevents the capacitor from discharging before the ignition point. When the triggering circuit receives triggering signal, the triggering circuit stops charging the circuit, allowing the capacitor to discharge rapidly to the low inductance ignition coil, which increases the 400-600 V capacitor discharge to up to 40 kV at the secondary winding. This 40 kV then jumps the spark plug gap. When there is no triggering signal, the charging circuit is reconnected and starts charging the capacitor again.