The 4-Stroke Gasket #7 installs on to the 49cc 4-stroke Flying Horse 5G and Huasheng 142F carburetor between the carburetor and the carburetor spacer
Installation is simple: remove your carburetor from the cylinder, leaving the plastic spacer on the engine. Remove and replace the stock gasket on to the carburetor and install the carburetor back on to the engine