10/set Round Head Main

10/set Round Head Main Jet 4mm GY6 50cc 139QMB Scooter Moped Keihin Carb 82-105 Description10 sizes of 4mm main jets for 50cc carb.found on 139QMB 50,60,80cc 4-stroke Scooter/PZ19 carb.Size includes:...