Water Pump Shaft Kit Yamaha WR 400 F '98-'00Fuel pump strainers act as the first line of defense against fuel system contamination. Strainers filter out common contaminants found in gasoline such as dirt, dust, and other particulate matter, as well as gasoline varnish. Quantum fuel pump strainers feature multiple layers of strainer media to filter progressively smaller particle sizes. The expanded surface area provides enhanced filtration, extending the life of the fuel pump. Restricted fuel