Mark 25s are really good performing engines when all their stars are in alignment. But there are a lot of stars. SO MANY stars. They are a lot tougher to make right than OMC products; but think of it as a challenge and don’t be in a hurry.
Even if that cream puff starts right up as it is, do NOT leave the dock without at least putting in a new impeller, and grease in the lower unit. They can fail faster that you can say, “What the….”
Long live American manufacturing!
