When buying an outboard engine or repowering your boat, there are plenty of questions to consider. Should I buy two-stroke or four-stroke engines? Are two engines better than one? Are three engines better than two? What size outboard do I need? How do I make sure not to underpower my boat? In most cases, the largest outboard makes the most sense. Powering your boat with as much horsepower as it’s rated for is often the best idea. Check out the newest engines on the market today.