Dale

It seems the MVVS 49 has a trick setting. I must admit that my very new one ( 25 min running) is driving me crazy.
I'm using a home made fuel with 80% methanol and 20% synthetic oil from Morgan Fuels and it isn't installed in the airplane yet.
The engine has a very good idle and a good top RPM with 11000 RPM with an APC 11x7.
If you press the throttle from idle to the top end you have to immediately return the valve to a very low opening otherwise the engine dies, after some seconds in that position the engine seems to be stronger and then you can definitely open the full throttle with no problem at all.
I've noticed the storage of some air drops at the fuel hose. It seems the drops comes from the carburetor ??? After some time the small drops becomes a 1" air bulb. But even so the engine does not die at the top end.
Is it normal?