When I was a kid, I had a little "Sea Flea" to mess about in. I think it had a 4 HP as well, but the boat wasn't much more than a sheet of curved plywood. I only had a tiller though. All the same, I can't begin to count the number of hours I spent tearing around in that. It was called "Squirt"! My Dad and I painted it bright red with a white racing stripe... Very sporty!
My recollection is that my folks turned me loose with a key-hole lifejacket on and I would be gone for hours, and I can remember running out of gas on a regular basis. (In reality, I think the "lake" wasn't much bigger than a pond, and I suspect I was never out of hollering range...
And so the addiction to boats began...