Its not the box temp that matters, it could be a component on the circuit board inside that heats up and shuts it down - its a remote chance but it could be happening.

I would seriously try a ground run with a good strong partner that can hold the plane. Do it off the field so everyone won't yell at ya for making noise! Run it like you fly it.

I have seen new ignitions be bad out of the box.. you might as well rule it out before sending the engine in or tearing into the carb.

I would be pulling my hair out if that was my engine.. I went through a lot of crap with a DA100 recently. I finally found out it was a pinhole in the fuel line right AT the carb inlet .. we found it AFTER the engine was take off and it bench ran perfectly.

The DA ran flawlessly at high speed on the plane but we never were able to get it to idle down... air in the fuel lines will do it every time. There is no way we would have caught it while running because the leak was just prior to entry into the carb. The reason we did catch it is we changed out the line when the engine came back... while looking at the end, I noticed the hole! It probably got tweaked with the needle nose when we pushed the line on!

The wierd thing about this problem is that it only did it at idle. You would think it would have been the other way around!

DP