Many years ago when I got hooked by motorcycles, I started to hear a lot about two and four stroke engines... It seemed there were (and there still are) strong opinions in pro and con of each of the engine types.

As Internet wasn't available, and as I was worried about other aspects or motorcycle riding back then, I left that question unanswered for a long time.

If this is your case or if your are interested in these two kind of internal combustion engines, in the next few lines I hope to give you a few fast answers and some resources to get more in depth information.

Just keep reading...

Here are some facts about two and four stroke engines:

TWO STROKE ENGINES

Cycle - Two Strokes:

1.- Compression (intake+compression)

2.- Combustion (combustion+exhaust)

Take a look at the cycle in: http://science.howstuffworks.com/two-stroke2.htm

Advantages of two stroke engines: