10/20/40pcs M4 Main Jet 4mm for GY6 50cc 139QMB Scooter Motorcycle Mikuni Keihin Carburetor CVK24~26

10/20/40pcs M4 Main Jet 4mm for GY6 50cc 139QMB Scooter Motorcycle Mikuni Keihin Carburetor CVK24~26

Aliexpress UK