Yamaha - Fuel Pipe 1 Fuel Delivery Component 7CR-F4311-00-00. Overview. Fuel pipes are one of those parts that can quietly cause problems if they're not in good shape. I've run into engines that wouldn't run right just because of a small crack or restriction in a line like this. When fuel flow isn't steady, everything from idle to throttle response gets affected. Keeping a solid, properly fitted pipe in place helps the whole system stay consistent.. Key Features. • Steady Fuel Transfer - Maintains consistent fuel flow for smooth and reliable engine operation.• OEM Material Quality - Built to handle fuel exposure and harsh marine conditions over time.• Precision Routing Fit - Designed to match factory layout for clean installation and proper alignment.• Air Leak Prevention - Helps keep air out of the fuel system for stable performance.. Engine & Boat Compatibility. Designed for Yamaha outboard engines that require a direct-fit fuel pipe within the fuel delivery system. Commonly used acr