Atomic 4
John -People on this site are probably tired of hearing me drone on about the Atomic 4, but I really love the engine. Of course you need to have the engine and the boat surveyed thoroughly by a accredited surveyor of good repute, but that goes without saying.I love the A4 due to it's simple design. It's been around in various forms since the early part of the century, and the current model is based on a 1940's design that I believe has changed very little. Very dependable, predictable, and tolerant of less than perfect conditions. As for gas - it is not as safe as diesel, but it is still safe if you handle it correrctly. For a great post on this issue, check the archives for the "gas or diesel" question about a month ago. The big drawback on the A4 comes to servicing it. If you need to pull it, it's big project, whereas removing an outboard is pretty easy. Nonetheless - I would not trade mine, even at no cost. If the two boats are entirely equal, then I would go with the boat with the newer engine in better condition.I think your survey will really help guide you in this task - it will turn up many other things that may turn out to be much more important. But look at the A4 as an asset, not a liability. Mine is 22 years old and runs like a champ!Rob Rich