Yamaha - Fuel Pump Gasket 1 Fuel System Seal 6K8-24431-10-00. Overview. The Yamaha Fuel Pump Gasket 1 6K8-24431-10-00 is one of those small parts that can make or break how your fuel system behaves. When this gasket starts to go, you'll usually notice it right away-fuel seepage, rough running, or that faint smell that something's not sealed right. It sits between critical fuel pump components, so it needs to hold tight under pressure and vibration. Swapping it out at the right time keeps things clean, sealed, and running the way they should.. Key Features. • Leak Prevention Seal - Creates a tight seal between fuel pump components to prevent fuel loss.. • Exact Fit Design - Matches Yamaha specifications for proper alignment and sealing.. • Fuel Resistant Material - Built to handle constant fuel exposure without breaking down.. • Stable Under Pressure - Maintains integrity under engine vibration and fuel system pressure.. Compatibility. Compatible with select Yamaha outboard engines usin