A few fast responses and facts about Two and Four Stroke Engines.
Many years ago when I got hooked by motorcycles I started to hear about two and four stroke engines... It seemed there were (and there still are) strong opinions in pro and con of each of engine types.
As Internet wasn't available, and as I was worried about other aspects or motorcycle riding in that time, I left that question unanswered for a long time.
If this is your case or if your are interested about these two kind of internal combustion engines, in next few lines I hope to give you a few fast answers and some resources to get more in deep 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 cycle in: http://science.howstuffworks.com/two-stroke2.htm
Advantages of two stroke engines:
• The engine fires - spark plug ignites - once every revolution of crankshaft. • They produce twice power than four stroke engines. • They are much simpler than four stroke engines. Fewer parts to worry about.
• You have to mix two stroke engine oil with gas, and depending on your consumption, this might be expensive. • They last less. Lubrication is not as efficient as in a four stroke engine with heavy oil. • Do not use gas efficiently. • Pollute more.