I have posted this issue last week but got only very few replies, tried couple things suggested here but I still have problems.
My Evolution 0.46 engine still doesn't respond to high speed and worst, sometimes it does on the bench but a minute after take off the problem come back, what drived me to land with dead engine twice and break two propelers already.

The problem is shown in the attached picture, showing how the engine responds to the throttle action (values were just supposed).

Here's what I did already trying to fix this issue:
1)Tried to adjust the high speed needle within and out the factory stops, with no results.
2)Checked the fuel tank for air leakage, but found no problem.
3)Contacted the engine customer support. I requested the factory setup for high and low speed needles, just to be sure I would be setting something expected.
4)The customer support said the low speed needle should be aroud 1 turn from the closed position and the high speed needle around 1.5 turns from the closed position.
5)I checked first the range available for the low speed needle based on the factory stops position and it was to lean. I changed the stops to allow the adjust around 1 turn from closed.
6)Tried to adjust the low and high speed needles aroud the position sugested by the factory ( I whent out a bit just to be sure ), got some improvement but far from what I'm sure it should be.
7)Replaced the glow plug to a brand new, just in case.

I just flew solo last Thursday, after the adjusts above, but felt the engine not happy.
Flew again yesterday and the engine started the problem like in the picture again and went dead. Landed hard and broke the propeler for the second time because this problem.

Does anyone could give a light or you guys think I should take this engine to the store and request its replacement? I bought it 2 mo ago.

Thanks,

Nilo