Description CDI Box with variable ignition timing Top PerformancesCDI Unit Top Performances variable ignition Yamaha Aerox / BW's after 2004. Most stock CDIs are restricted so the engine cannot rev up as high as it potentially could.If you replace it with an "open" derestricted model, you can improve performance of tuned setups. In addition, the CDI with variable ignition timing will optimize ignition which is no longer static but dynamic and controlled by RPM; in most cases this means that ignition timing is advanced to take better advantage of torque. This open CDI with variable ignition timing will allow your engine to unleash its full potential. Must-have for racing engines.Advantages of Top Performances Open CDI:RPM derestriction: By installing this CDI, you can remove the restrictions of the stock CDI so that the engine can reach higher RPMs.Adjusting ignition timing: The variable / adjustable ignition timing can improve acceleration and engine running.Improved performance: Your scooter gains power and sharper throttle response, ideal in combination with tuned engines. Questions about the product

• Brand: Top Performances
• SKU: T9921790
• Availability: In stock

Notes and Safety CDI and coilThe CDI (for Capacitor Discharger Ignition) and the ignition coil are an essential part of the ignition. While the coil is actually just an energy storage device that supplies the ignition spark to the spark plug, the CDI module is a more complex component that controls the engine speed at which the spark should occur. It can therefore have an effect on engine behavior and performance.Open CDIMany riders equip their 50cc geared mopeds and scooters with open, i.e. derestricted CDIs. In most cases, the original CDI throttles the maximum achievable engine speed, which significantly reduces performance and top speed. To remove this rev limiter and thus increase maxim