My old boat had the 1981 70 hp. Boat sank in freshwater at my dock after a HEAVY rain (and a leak LOL). Long story....but the short of it was that after getting it up and out I poured lots and lots of marvel mystery oil in the cylinders and worked it in real good, turning the flywheel by hand and blowing it out....then doing it again....and again. Toward the end I started hitting the starter to blow it out. Finally, put the same plugs back in, some fresh gas...fired it up....filled the yard with smoke....and the neighbors yard....and their neighbor's yard. After a few minutes, when I could see the engine again, she was purring. Pressure washed the boat and ran it for 2 or 3 more years and never had problem with it. Oh, and fixed the leak!
Cannot brag on those motors enough.
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1994 Wellcraft V21
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