Yamaha - Pipe assy water - YF1-89617-28-53Yamaha Water Pipe Assembly Engine Cooling System YF1 89617 28 53 Overview When youre working on Yamaha engines, the cooling system is one place where everything has to move water exactly where its supposed to go. The Yamaha Water Pipe Assembly YF1 89617 28 53 routes cooling water through the engine so heat stays under control during long runs. Its a simple piece of hardware, but it plays a big role in keeping the cooling system flowing properly. When