Hi guys:

As I said I bought a brand new GMS47, I've put it apart to clean engine before break in, have read the entire thread about some engine problems, started break in with a 9/7 MA and omega 10% fuel, after two tanks flew my plane, engine performance was ok till it suddenly died fly after fly, there was obvious overheat cause it's a brand new engine.

Started thinking about drilling and all that stuff you mention, but surprise come out when I runed out of fuel ( omega 10% ) bought another brand cause it was only one in store ( cool power 10 % ) have to tell you, I played a bit with low speed needle and results where amazing, engine works outstanding with no need of drilling any part of it and screams like hell.

May be GMS has worked out the problem on carb or I was just lucky with mine, there is one thingh for sure all I did was to set idle neddle at 1 3/4 turns, thats where it ended up I like these engines no matter what other pilots say.

Regards.
Rafa