I have about 1 1/2hours of runtime on a Magnum 91 4S. I followed break in procedures to a T and the engine is a gem.

However, the low end seems to me a little high. The engine is on a 40 sized 3D plane and on the landing approach I have to cut the engine or it wont land!

With a 14X6 MA on 10% the lowest reliable idle I can get is between 3000-3500. I have tweaked the low end needle valve. If I leave the glow starter on it I can get it a little lower.

With less than a gallon through the engine is the high low end just do to the engine needing to be broken in more or is 3000 RPM normal for idle?