Yamaha Main Nozzle 7VV-1495A-10-00. Overview. The Yamaha Main Nozzle 7VV-1495A-10-00 is a genuine original equipment manufacturer component designed to regulate fuel flow within the carburetor system. This nozzle plays a critical role in delivering the correct amount of fuel into the engine, ensuring proper combustion and consistent performance.. Manufactured to Yamaha's precise standards, this main nozzle provides accurate fuel metering and a reliable fit. It is an ideal replacement for worn or