1 set Oil Injection Block Off Plug Hardware Port For Yamaha 1981-2024 Product Description: Made of highquality, Oil pump plug covers are equipped with rust and corrosion resistance. They can well withstand high pressure and high temperature, maintaining stability during a long period of use. The oil pump is often inaccurate and can deliver excessive or insufficient oil to the engine, resulting in significant performance loss. Pre-mixing engine oil and gasoline will eliminate the standard oil pump components and their power consumption on the engine. Fitment For: For Yamaha PW50 Models 1981-2024