MORTCH GY6 250cc AC Racing CDI Automatic Advancing for Scooter ATV Go karts Moped High performance CDI designed to increase your acceleration and performance AC CDI for 50cc & 250cc Honda GY6 style engines This CDI provides better RPM display readings as compared to other racing CDI Dimension: L=3.625", Width=2.125", Thickness=1.25" 6 wires: red,black end in a 2-pin male plug; blue,yellow and 2 green end in a 4-pin male plug