10pcs M4 Main Jet 4mm for GY6 50cc 139QMB Scooter Motorcycle Mikuni Keihin Carburetor CVK24~26 PZ19 Round Head injectors Nozzle

Good luck with your favorite purchasesHign-concerned Chemical : None Special Features : Adjust carburetor Item Diameter : 0.5inch Item Weight : 3kg Item Height : 0.7inch External Testing Certification : CCC Model Name : GY6 Main Jet Origin : Mainland China Material : copper Item Type : Injector Nozzle