This adjustable performance AC CDI box is a great addition to your scooter build! If your CDI box has gone out, or you are just looking to squeeze a little bit more out of your hotrod, here ya go. With this box, you will have the ability to advance or retard the timing. This is great to get your tune perfect! This will not fit the stock Ruckus, only the GY6 Ruckus. PLEASE NOTE THIS CDI ONLY WORKS AS AN UPGRADE FOR AC CDI BOXES, IF YOU HAVE A DC CDI IT WILL CAUSE SHORT CIRCUITING AND DAMAGE. This will fit all: GY6 Engines (w/ A/C CDI)QMB139 Engines (w/ A/C CDI)Genuine Buddy 125cc-150ccTaotao 49cc-150cc (w/ A/C CDI)SunL 49cc-150cc (w/ A/C CDI)ALL Chinese Scooters 49cc-232cc (w/ A/C CDI) Electrical items are not returnable, please do the following before ordering:- Check the plug style on your stock CDI to make sure it is the same style.- Confirm whether you have an AC or DC charging system. You can determine whether an AC or DC CDI is installed by disconnecting the battery switch on ignition and trying to start the scooter with the kickstarter. If the scooter starts, an AC CDI is installed. If the scooter does not start, a DC CDI is installed.
