Universal Fitment: Compatible with almost all years Chinese made electric start upright engine 49cc 50cc 70cc80cc90cc 100cc 110cc 125cc engines. For ATV Quad Bike Dirt Bike Pit Bike Go Kart KLX 4 Wheelers Scooter Buggy Compatible with Coolster Taotao etc Product Size: The mounting hole of the front left starter kill light switch is 7/8'' (22 mm)， the distance of mounting holes is 2.75''(70mm) Package Includes: 1pcs x 110cc ATV Wire harness, 1pcs x 2 Wires Ignition Coil, 1pcs x 5 Pin AC CDI Box, 1pcs x 2 Wires Solenoid Relay, 1pcs x A7TJC Spark Plug, 1pcs x 4 Pin Full-wave Silver Rectifier (Voltage Regulator), 1pcs x 4 Wires Ignition Key Switch, 1pcs x 8 Wires 3-Function ATV Left Starter Switch, 1pcs x 2 Coil Stator Ignition Magneto Plate, 1pcs x Wiring Installation Instruction, 5pcs x Ties NOTE: Do not compatible with GY6 motorbikes and other Mini ATV / QUAD 200cc -250cc with different stator (not fit with 6 coil ) or CDl (not fit with 4+2 pin) NOTE: Comes with an easy to read wiring diagram.Professional installation is highly recommended. Better take it to a shop, as false assembly may cause trouble starting or even cause a fire on the harness, and we are not responsible for that. Maybe some plugs of the harness are different with your original parts , need you make a change , thanks PRO BAT 50cc Wire harness