Yamaha In-Line Fuel Filter 67F-24251-02-00. Overview. The Yamaha 67F-24251-02-00 In-Line Fuel Filter is a genuine OEM component designed to protect your outboard engine by filtering debris and contaminants from the fuel before it reaches the engine. Clean fuel is essential for proper combustion, efficient engine performance, and long-term reliability.. Installed directly in the fuel line, this filter helps trap dirt, sediment, and other particles that may enter the fuel system from the fuel tank