For 4-stroke GY6/QMB139 engines Rev limiter Wide range of compatibility Easy installation Affordable DIY repair Save money KYMCO Owners Please Note:This CDI module is an AC CDI and will not work on your scooter We have the correct DC CDI modules in stock here:Direct Current (DC) CDI Module (Ignitor)Capacitor discharge ignition (CDI module) or ignitor is used on very many gas scooters, ATVs, dirt bikes, and go-karts with modern 4-stroke GY6/QMB139 or Honda-style engines Description KYMCO Owners Please Note:This CDI module is an AC CDI and will not work on your scooter. We have the correct DC CDI modules in stock here:Direct Current (DC) CDI Module (Ignitor)Capacitor discharge ignition (CDI module) or ignitor is used on very many gas scooters, ATVs, dirt bikes, and go-karts with modern 4-stroke GY6/QMB139 or Honda-style engines. This ignitor is a commonly used scooter module in the motorsports industry. This style of connector CDI is used by Baja Motorsports, Ro