Yamaha - Primary Fuel Filter Fuel System Component 6F5-24563-00-00. Overview. The Yamaha Primary Fuel Filter 6F5-24563-00-00 is one of those parts that keeps junk out of your fuel system before it becomes a bigger problem. On older carbureted motors especially, even a little debris can throw things off fast-rough running, clogged carbs, or hard starts. This filter sits up front and catches that stuff before it moves deeper into the system. If you're trying to keep an older Yamaha running clean a