I've been looking at a use boat and came across a 92 Crestliner Nighthawk 1640 with a 60hp Evinrude on it. In asking about the boat, I was told that it gets to 3/4 throttle just fine, but cuts out completely past that. Compression is supposedly good across all the cylinders, and was told that it was checked over by the marina at Okoboji and they were told "That's just the way it is". Other than that I'm told that it runs well, and the boat looks to be well taken care of.
I'm pretty good mechanically, but I'm not experienced with outboards. My first thought is that it's fuel starved above 3/4 and just dying. I guess my question is, not knowing outboards that well, what's the risk that this is a horrible deep seeded issue that would be easier just to replace the motor than try to fix? or what are the chances that it a "Oh, well it was a common issue with these motors, just do X,Y,Z."
Assuming that what I'm told about good compression and running fine up to 3/4 is accurate, how much of an issue does this sound like?
I'm pretty good mechanically, but I'm not experienced with outboards. My first thought is that it's fuel starved above 3/4 and just dying. I guess my question is, not knowing outboards that well, what's the risk that this is a horrible deep seeded issue that would be easier just to replace the motor than try to fix? or what are the chances that it a "Oh, well it was a common issue with these motors, just do X,Y,Z."
Assuming that what I'm told about good compression and running fine up to 3/4 is accurate, how much of an issue does this sound like?