it may be old but its very informative for people about what actually happens in there. i'd like to see a 2 stroke one.
yer so would i although a four stroke is simpler being that the barrel doesnt have ports etc, so maybe it was just easier to do a four stroke, although that vid is good showing the movement of the valves so maybe we should leave a two stroke video down to you? cos i certainly ait drilling no holes and a barrel for youtube oh btw you can get glass sparkplugs so that you can see the cycle