Since you asked on the Antique Outboard website, my first opinion would be as a collector. As an antique, your engine is too new to be old and too old to be new. I don’t know of many people that are interested in these engines as antiques; and if there are any, they won’t be looking to pay much. They will already have 100 motors in their basements! Another couple of thoughts: It may have run well when put away. However, you say “It has been in the basement for some time, now.” Depending on how long that time is, it may need a carburetor cleaning, due to the gasoline inside them going bad and may, in fact, not run right, now. Also, that engine is right on the edge of whether it had stainless steel shafts in the lower unit, or not. Some 1975s had them, some didn’t. I don’t know about yours. This seemingly small difference is HUGE, in terms of longevity; and in my opinion, would be a make or break in whether I would consider buying it or not. If I were you, I would try to sell it on Craigslist or Facebook market place, starting at $300 and see if that gets you anyplace. Fleetwin’s price range is probably more realistic.
Edit: I will say this, though: When those engines are running right, they are some of the best-running, two-stroke engines ever made.
Long live American manufacturing!
