Re: What size motor for my 14'X56" jon boat?
I've got a 1999 Alumacraft modified V hull bass boat out back that has a 40hp max, and a Lowe 14' with a 57" beam width that says 25hp max.
I'd say that a 15 to 20 hp would probably do just fine but you could get by with a 10 hp if you had too, depending on the weight your carrying.
Also, just a note, most jon boats are referred to by their length and bottom width, so a boat with say a 56" beam width may only have a 36" bottom width, or less. My Lowe is a 1436. I have a similar Starcraft V hull that also has a 25 hp max, but runs along just fine with my 9.5hp on it.