Hooray at last - Jude has suggested that to get more use out of our Adrian Dean designed and built 14.5ft x 5ft huon sailing dinghy, we invest in a small outboard.
Boat probably weighs about 200kg + kit and normally 2 but up to 4 adults for a max of, say, 500- 550kgs. Developed from a rowing fishing dinghy so very clean lines. We did have a David Payne Putt Putt with a Blaxland- Chapman Super Pup of a claimed 3.5hp, probably heavier and she pushed along at hull speed. Liked the slow 600-900 rpm rhythm but no way are we going for an inboard.
Prefer 4 stroke. The Honda 2.3hp comes to mind but maybe a bit short of grunt, light @ 12 kg but air-cooled and anticipate a bit noisy. Like the look of the Suzuki 2.5hp, water cooled @ 13kg, slightly lower geared but more complicated. Tohatsu maybe also worth a look, larger cc, heavier @ 17.5kg but do go up to 3.5hp with higher revs.
Brains trust - advice and comments please!