I just searched for "4 stroke" and found 15 different threads. I'm sure "4-stroke" or "4 cycle" would yield even more. It gets old having people ask the same questions over and over and over and over and over. All they have to do is look for it. There's a TON of information on almost every type of engine out there, it's just people are too lazy to spend time looking.

I'll take a deep breath now.