CDI UNIT MODEL CG125 DF048 MOTORBIKE

A capacitor discharge ignition works by passing an electrical current over a capacitor. This type of ignition builds up a charge quickly. A CDI ignition starts by generating a charge and storing it up before sending it out to the spark plug in order to ignite the engine. 

This power passes through a capacitor and is transferred to an ignition coil that helps boost the power by acting as a transformer and allowing the energy to pass through it instead of catching any of it.