Evinrude 2-Stroke and 4-Stroke (2018) - By BoatTEST.com

For the full written captain’s report, test and performance data, and more about the Animation; 2-Stroke and 4-Stroke video, go to: http://www.boattest.com/engine-review/Evinrude/50000202_How-2-Stroke-and-4-Stroke-Outboards-Work_2018 Evinrude How 2-Stroke and 4-Stroke Outboards Work: Many boaters do not know exactly how an outboard engine works. Here’s an easy way to learn the difference between the two major types of outboard – 2-stroke and 4-stroke – and understand how they generate power to turn the propeller. In fact, there is a big difference.