4-Stroke Carburetor Cover Assembly The 4-Stroke Carburetor Cover fits right over the carburetor on the Flying Horse 5G and Huasheng 142F 49cc 4-stroke bicycle engine kit Installation is simple: lift the top portion of the engine cover to expose the mesh filter, and life the filter to expose the studs that connect the cover to the carburetor. Remove the studs, line your new cover up to the carburetor, install the studs, close the carburetor cover, and you're good to go Note: Studs not included