Evo 50, O.S 50 SX-H hyper

3/4 turn open from close. Also leaned the mix needle from factory setting to get a reliable idle run. Im flying in a cold weather, around 0 C this time.

I believe your engine is not running lean. It's just the manufacturing tolerance of the carburator that makes the correct mixture be found in a different point.

This is my first heli. Referred to my 4-cycle wing planes this fuel consumption of a heli is terribly high! I have spent more money for fuel to my heli than my car lately!

Im learning heli myself without a "live" instructor. GV-1 and AVCS gyro have been great help. Otherwise I were not able to trim the curves by myself.

Jyrki