Yamaha - Fuel Pipe 1 Fuel Delivery Component 7CT-F4311-20-00. Overview. Fuel pipes are one of those parts you don't notice until the engine starts acting up. I've chased down plenty of rough-running issues that came back to a small crack or restriction in a line like this. When fuel flow isn't steady, the whole motor feels off. A solid, properly routed pipe keeps everything running smooth and dependable.. Key Features. • Consistent Fuel Flow - Maintains steady fuel delivery for smooth engine operation.• OEM Material Construction - Built to handle fuel exposure, pressure, and marine conditions.• Precision Fit Routing - Matches factory layout for clean installation and proper alignment.• Leak Prevention Design - Helps keep fuel contained and air out of the system.. Engine & Boat Compatibility. Designed for Yamaha outboard engines that require a direct-fit fuel pipe within the fuel delivery system. Commonly used across a range of Yamaha outboards where consistent fuel flow is essential fo