Standard Replacement Regulator for Aprilia / Piaggio 50cc 2T Scooters. Piaggio Scooters have 2 types of regulators, Please check the regulator in your scooter before ordering. Regulators perform the task of ensuring that the stator (charging generator) does not over-charge the electrical system. As the stator runs off the rotation of the engine, as the engine revs up it generates a higher voltage of charge. Typical symptoms of a faulty regulator are blown headlight and taillight globes, and an expanded battery.
