Yamaha - Fuel Pipe 1 Fuel Delivery Component 7CT-F4311-00-00. Overview. Fuel pipes are one of those parts you don't think about until something feels off. I've seen engines chase all kinds of issues that ended up being a cracked or restricted fuel line. When the pipe is clean and flowing right, the engine responds the way it should-smooth and steady. It's a simple piece, but it keeps everything downstream working properly.. Key Features. • Steady Fuel Transfer - Maintains consistent fuel flow between system components.• OEM Routing and Fitment - Designed to match factory layout for proper installation.• Leak-Resistant Design - Helps prevent fuel loss and air intrusion into the system.• Durable Marine Build - Built to handle vibration, heat, and harsh operating conditions.. Engine & Boat Compatibility. Designed for Yamaha outboard engines utilizing internal fuel piping systems. Commonly used across a range of Yamaha outboards where reliable fuel delivery is essential for proper engine o