I am starting this to see if this can pool some knoledge on anything useful for 1/2as. First, I am adding the following hint for The Cox TD, or Medallion engines.

If you have a TD or Medallion, before fueling for flight, rotate the engine clockwise till the piston closes the port. Now , keep it there, and fuel away. This prevents flooding the engine even if fuel goes into the carb, it will only overflow the venturi. I often do this, then use the fuel in the carb to prime the engine. Works good, and stops flooding the crankase.

Remby