Yamaha - Water Pump Repair Kit - 6N0-W0078-A0-00 - Engine Models 6 & 8Yamaha Water Pump Repair Kit Engine Models 6 & 8 Cooling System Service Kit 6N0 W0078 A0 00 Overview The Yamaha Water Pump Repair Kit 6N0 W0078 A0 00 is one of those maintenance kits you dont skip if you want your small outboard running cool and reliable. On 6 and 8 horsepower motors, even a slight drop in water flow shows up fast, especially at idle. This kit gives you the core components to rebuild the pump instead of chasing individual parts. If