## Ignition Module 139QMB/QMA (GY6 50) 4T - Reliable Starting and Optimal Engine Performance This ignition module is a key component of the ignition system in scooters with a 139QMB/QMA (GY6 50) 4T engine. It ensures reliable starting and optimal engine performance, guaranteeing a smooth and dynamic ride. This is an AC type module, meaning it draws alternating current directly from a separate winding located in the alternator. ### Compatibility and Power Type (AC) Before purchasing, compare the CDI socket with the photo and make sure that the original module in your vehicle is of the AC type. To check the type of module (AC or DC), perform a kick-start test with the battery disconnected. An AC type module will allow the engine to start without the battery, while a DC type will not. The test should be performed on a working, original module. ### Why choose this ignition module? * **Reliability:** The module's design ensures long-lasting and trouble-free operation. * **Optimal engine performance:** Precise spark control ensures optimal combustion and maximum engine efficiency. * **Easy installation:** The module is easy to install and fits perfectly in scooters with a 139QMB/QMA (GY6 50) 4T engine. * **Safety:** Stable module operation contributes to a safe and comfortable ride.