Re: 2002 ob on 1983 bayliner??
Scott, is that the same spec 75hp Yammy as retails north of Mexico? It sounds like a commercial skiff motor to me if they rope start --I own an old commercial Suzuki DT55M rope start like that and it's quite different from the regular DT55, not the least because it's a different powerhead with two big cylinders instead of three little ones. These motors are simple and rugged but they lack a lot of creature comforts most owners expect and tend to suck fuel.<br /><br />As to your question about fuel economy(should be a separate post), a 4 stroke motor is going to beat a 2 stroke outboard however you slice it. I imagine the new big 4 stroke outboards give the i/o's a run for their money. If you are talking about planing hulls, a straight inboard on a boat that size is pretty unusual but I imagine that the same motor would be more fuel efficient on a stern drive than an i/o because less energy is lost on the way to the prop. Ask a Shamrock owner if you can find one.