Reply To: Grafting a newer motor on an older Evinrude outboard.

[Don]

Just want to be sure I understand your objective here….I’m thinking you want to use a newer 4hp powerhead, but somehow adapt the older style side covers, recoil and fuel tank….Do I have it right? If so, it seems as though some of the newer 3/4hp models had this type of arrangement only with newer recoil and plastic lower cover….
So, I am thinking what if you used a newer style powerhead and midsection, say from a 79-early 80s model, then used the older mounts/rings/flywheel/mag plate set up on it….I don’t think you could use the ones with the neutral only gearshift set up cuz the shift handle wouldn’t fit under/over the aluminum side cover. But, these newer models had the two threaded holes in the block for the tank mounting ring, and perhaps the older front ring mount would bolt up to the front of the newer crankcases….
Just might work, will probably take some minor engineering changes, but seems like an interesting project….Don