Hello all, today I went and checked out a 93 Sunsport. It has the pro boss 351 engine. Overall I liked the boat but was a little concerned when I took it out for a lake test. The boat seemed to run a little rough when cold, but improved once it warmed up. Acceleration seemed ok, though I have never driven a sunsport so I have nothing to compare it to. However, I could not get the boat over 34mph, verified by gps, on totally flat glass like water and hardly any wind. My memory is a little foggy but I believe the rpms were only about 3k at wide open throttle.
Engine hours are 800. My question is, would this likely be caused by an ignition and/ or carb issue? Or could this be a sign of low compression or something more serious? The prop looked perfect. I really like the boat and would have bought it had the lake test gone well. As of now I am still considering it.
Also, temp gauge is not working so, not sure if that might have anything to do with it.