99101-ZH8-0820 Main (#82) Jet - Overview. The 99101-ZH8-0820 Main (#82) Jet is a critical component of the Honda carburetor fuel system within marine engine systems. This part regulates the flow of fuel to the engine at higher throttle openings, ensuring optimal combustion and sustained performance. By precisely controlling fuel delivery, it helps maintain engine efficiency and power output. Designed as a genuine Honda OEM part, it ensures seamless integration with existing parts, maintaining op