99101-KTB-0980 Main (#98) Jet - Overview. The 99101-KTB-0980 Main (#98) Jet is a specialized carburetor part within the fuel system of Honda marine engine systems. This main jet controls fuel flow at higher throttle settings, guaranteeing accurate fuel delivery and smooth engine operation. As an OEM component, it seamlessly integrates with original Honda hardware to maintain optimal engine performance and durability.. Key Features. Precision machined carburetor main jet designed to ensure accurate fuel flow for efficient combustion.. Genuine OEM Honda part manufactured to match exact factory specifications, dimensions, and tolerances.. Maintains consistent fuel delivery to optimize engine performance under various operating conditions.. Durable construction providing long-lasting service in marine environments.. Designed for clean and easy integration with existing carburetor assemblies and seals.. Helps ensure smooth throttle response and reliable power output from Honda marine engine