flogging an air cooled engine in motion is fine since as long as it is moving air is flowing across the engine to cool it. What I would like to know is how fast it over heats sitting stationary on a hot summer day in traffic. It may not, but I don't want to risk my engine to find out.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!