Illesheim71
Contributing Member
2006 F150, my first Yamaha. Previous owner had replaced water pump impeller at some point. I replaced it when I bought the engine. It's a solid stream, but not very forceful like my (sold) Honda 225. I checked the tube back to the block and it's clean. Engine does not overheat, so I'm thinking it's just a characteristic of the Yamaha? Worst scenario is there may be a piece of an old impeller in there somewhere. Opinions?
