PREMIUM MYK Carburetor 50cc 80cc 4 Stroke GY6 Engine 139QMB 139QMA 50QT w Electric Choke and Fuel Filter High performance Carburetor for GY6 49cc 50cc 80cc 4 Stroke engines It will work with Honda GY6 50cc 80cc base 4 stroke engines Chinese 50cc 4 stroke engines 139QMB and 139QMA, 50QT & 49QT Electric Choke. Comes with Fuel Filter This carburetor comes with a #75 Main Jet for better fuel to air ratio.