Motorcycle Start CDI Device High Voltage Igniter Racing AC 6 Pin CDI Box Ignition Coil Spark Plug for GY6 50-150CC Moped Scooter Features: 1. Perfectly compatible with all kinds of models: Perfect for ATV scooter moped off-road karting based on Gy6 50 CC 125 CC 150 CC engine. 2. The main function: the coil can improve combustion efficiency and enhance electrical performance. 3. High quality: made of plastic coils and CDI and ceramic spark plugs, this spark plug is very durable. 4. Additional effects: CDI has a 6-pin connector and AC transmission system. 5. Easy to install, the coil can improve combustion efficiency and enhance electrical performance. Specification: Ignition coil characteristics: total length: about 19"/50cm Suitable models: GY6 QMJ / QMI157, QMJ / QMI152 four-stroke engine The coil can improve combustion efficiency and enhance electrical performance Perfectly matched to the perfect fitness original equipment, just replace and ride again, easy to install. CDI box function: suitable for: GY6 50cc-150cc 139QMB, 152QMI and 157QMJ engines Connector: 6-pin plug. CDI size: about 64*37*42mm/2.52*1.46*1.65in (24mm orange part + 18mm white part) (length x width x height). The Orange CDI is an ignition module with no speed limit and also has a single stage advanced timing circuit, which means that if you use orange CDI, you can respond faster to RPM acceleration and higher RPM limits. Spark plug function: Model: A7TC Thread diameter: about 10mm/0.39in Hexadecimal size: about 5/8'' Note: Not suitable for Honda TRX125 1987 1988 and more Packing List: 1*ignition coil 1*AC CDI box 1*spark plug _x000D_