CDI Unit, Standard Ignition Module (AC), No Rev Limit

The CDI box is responsible for sending spark to your plug. It does this by charging it's internal capacitor with power from the stator, then releasing it all in one jolt when it gets a timing signal from the trigger module.NO REV LIMITGY6 rev limits are a myth. We've tested this CDI to 30,000RPM (Thirty thousand) using an oscilloscope and trigger simulator. That's THREE times faster than your engine can possibly run!Lack of spark can be caused by a problem with these items: CDI Module Stator Trigger (module on stator) Ignition Coil Switch(es) Wiring in-between these items