Vespa CDI PX PK Testing : No Sparks : Engine : Multimeter : Electronic Unit

No Sparks ??!?!? Vespa PX PK : Check First the CDI and the Stator Plate. This Video is a How to uide for Testing the CDI and as well a Short Intro about the Function of the CDI. How It Works: Energy Generation: When the engine turns, the stator (alternator) generates alternating current (AC), which is stored in the CDI unit. Charging the Capacitor: The generated AC power charges an internal capacitor inside the CDI unit. Ignition Pulse: A signal from the pick-up sensor determines the exact moment when the capacitor releases its stored energy to the ignition coil. Spark Generation: This sudden discharge creates a high-voltage pulse, which is sent to the spark plug, igniting the fuel-air mixture. This precise timing ensures efficient combustion and optimal engine performance. Connections of the CDI Unit: The electronic unit has four connections: White (BIANCO): Ground connection. Red (ROSSO): Connection to the pick-up sensor. Green (VERDE): Power input from the stator (alternator). Green (VERDE): Kill switch for engine shutdown.