Algodoo

I took the piston, the crank case, and the sleeve from my four stroke and made it into a functional two stroke. It uses tiny gears to draw the fuel up to the inlet port. I made them invisible because they are very ugly. Haha. It doesn't run quite as fast as my four stroke, but it still runs pretty reliably, and creates smoke. Just like the four stroke, you can move the speed slider to control fuel pressure.

Just wait for the fuel to reach the inlet port and press the right arrow key. It should start up. Then you can move the speed slider to increase fuel pressure.