It’s sort of like admitting to your fraternity brothers that you are still a virgin. Admitting that you don’t understand the basic workings of a four-stroke engine to your motorcycle brethren, can be embarrassing . . . but it is probably true for the majority of us. Jacob O’Neal has created the following animated info-graphic that is by far the best, and most comprehensive explanation of basic four-stroke technology that I have ever seen. It won’t teach you everything, of course, but for those who need a solid foundation in how a four-stroke engine works, it would be hard to beat the 10 minutes or so needed to study the following carefully. If you click on the info graphic below, it will take you to a larger one on Jacob’s site.
Infographic designed by Jacob O’Neal