Gentlemen,

My DA-50 quit shortly after take off last week on a hot day. Landed - no problem. Suspected the engine went lean and overheated.
I richened the needles and it ran fine.
Inspected the carb, tank, and fuel lines and they appeared OK.
Upon examining the outside of the cylinder and fins, they appeared to have a pinkish cast in color.

What - if any - are signs that a 2 cycle engine (DA 50) has overheated? How can I determine if the engine has been run too hot and my need servicing?

Thanks - Jaketab