Yamaha Pipe 10 - 6E5-24321-01-00. Genuine Yamaha Fuel Pipe for Consistent Engine Performance. The Yamaha - Pipe 10 - 6E5-24321-01-00 is an OEM-certified replacement fuel line designed to deliver dependable fuel transfer in your Yamaha outboard engine. Built to withstand the rigors of marine environments, this precision-engineered pipe ensures leak-free performance and supports consistent engine operation.. This is a direct-fit solution that restores fuel system integrity without guesswork or mod