I recently acquired a 1940 Evinrude outboard, 5.4 HP, 4 cylinders, silver paint, and want to know where to go from here. I bought it thinking it would be an interesting introduction into the world of antique outboards but seem to have hit issues right from the word "GO". It will not even begin to move when I pull the rip cord. A marina near my cottage said this could mean the cylinders are stuck and to try spraying WD 40 into them and letting it sit. I did this and nothing happened. Where can I go from here? Is it even worth doing anything to it? Thanks