A few weeks ago I was trying to explain to someone the difference between 2-stroke and 4-stroke engines after he asked why 2-stroke smoke. It was hard. I tried to draw pictures but don't think I did very well. (My own limited understanding probably played a part there...)
Got this great lesson on a recent Sideburn post. Check the post for more details, but here are two great images that tell a thousand words:
4-stroke
2-stroke
Never understood the need/function of an expansion box on a 2-stroke before this. Thanks MP.
2-smoke or 4-poke?
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