Re: Wood rot
Like others said, all boats that have wood in them can rot. I just bought a outboard boat with rot all through it. It was stored outside, uncovered, and the previous owner had driven 4 screws right through the bottom of the hull.
I however disagree that IO's aren't more prone to rot. Common sense says that a big hole in the transom, and the potential for engine cooling water leaks makes it more likely that an IO, particularly one that is not cared for well, has more potential for water in the hull. This means there is more potential to do things like soak foam, and get to any place whene the wood is not sealed. On top of that you have an engine under cover that gives off heat which would actually help the batceria that rots wood to grow. Having said that, I don't think you should be scared away from an IO, but I personally prefer outboards for smaller boats for a few reasons. First is the stuff mentioned above which is in my opinion minor. Another is that the IO drive has everything an outboard lower unit does and more which is more opportunity for things wearing out. Finally, if the outboard takes a dive you can simply bolt a different one to the transom in about an hour if you use the same brand and don't have to change controls. Not so easy if the IO goes south. The benefits of IO are obvious in that you don't have that motor sticking up in the air, you can buy more power for less money on the used market (Usually), and the 4-stroke thing too. Many IO's have the sunbathing deck too if that's your thing.
My 2 cents
John B.