Fuerduo 2-Stroke Engine Carburetor Carb for Motorized Bicycle Bike 48cc 49cc 50cc 60cc 66cc 80cc

2-Stroke complete Speed Carburetor fits all engine sizes.  This carburetor incorporates a larger barrel slide throttle body for increased performance (some models also have a built on fuel shut-off valve).  The main jet is slightly larger for improved performance and, there is a better screw connection at the gas inlet tube. Installation: Just loosen and uninstall your existing carburetor, slip this carburetor on, clam down around the manifold, install the fuel line.