Suck Squish Bang Blow

This blows my mind... I've always wanted to see what was really going on inside an engine... All this time I thought it was a little squirrel running in a wheel that made my bike go? Crazy...

I do wish it was a little bit longer so I could see the exhaust sequence, but there must not have really been anything to see other than an open valve. Anyways, cool none the less.