Algodoo

This is a sinple 1 cylender motor, it has a starter motor and you can control the speed.

controlls:
start - d
stop - toggle s
controll the speed of the motor with the box that says "motor control" and use the "spring constant" slider
to make it go faster and slower.

If you want the engine to be more or less sensitive to change the speed pause and adjust the spring on the
wheel