How to Install a Big Bore Kit - HD Video

This video will show you how to install a big bore kit on your Chinese scooter. We are experts on Chinese scooters! Learn what has taken us years to learn in 45 minutes. We will share with you all the tips and tricks we have learned over the years to save you time and money. This is a step by step video. No general ideas here like you find in service manuals. This video will cover the 70cc, 80cc, 90cc, and 100cc Chinese scooter engines. Anyone can install a big bore kit with basic tools and this video. Enjoy! This is a instant download (no hard copy) To purchased a big bore kit click the link below:   80cc click here 90cc click here This video will cover these models: - Any machine with a QMB139 / 139QMB / GY6 50 (4-stoke) engines. - All Taotao 49cc/50cc scooters. - All Roketa 49cc/50cc scooters. - All Puma 49cc/50cc scooters. - All SunL 49cc/50cc scooters. - All wolf / Gorilla 49cc/50cc scooters. - All Znen 49cc/50cc scooters. - All Tank 49cc/50cc scooters. - All Peace 49cc/50cc scoo