In a 4 stroke engine, air and fuel (and the combustion of said air and fuel) contact the cylinder only. All of the other metal parts in a 4 stroke are contained separately and are continuously ...

In the most basic mechanical terms, a two-stroke engine is simpler than a four-stroke engine. It has fewer moving parts and requires fewer steps to achieve combustion. Four-stroke outboards like this ...

After all, the two-stroke has more power potential in that it creates a power stroke during every crankshaft revolution, and it does so with fewer moving engine parts than the four-stroke.

With replacement parts being tougher to track down ... and since they don't use fuel as efficiently as a 4-stroke engine, you'll get fewer miles per gallon out of one. While diesel engines ...

Four-stroke engines crashed the party in the late '90s ... The level of acceleration out of the gate was mind-blowing. With fewer parts and pieces, the two-strokes were cheaper and easier to ...