Yamaha - Fuel Hose Assembly Fuel Delivery System 6EK-2450B-00-00. Overview. Fuel hoses are one of those parts you don't think about until something feels off-hard starts, hesitation, or that slight fuel smell you can't ignore. I've swapped out plenty over the years, and going with the right assembly makes all the difference in keeping things clean and consistent. This one is built for real use, not just sitting on a trailer. Once it's installed, it's the kind of setup you trust every time you he