Given that its flown, if it was revving up to full throttle, but has suddenly started dieing, which is what it sounds like, you may have something clogging the needle valve. I've seen this several times on new planes.

The first and easiest fix is to hook up your fuel pump to the outlet from the needle valve, and pump fuel through the needle in the reverse direction. This will normally flush out any contamination. Make sure you don't just pump it back to the tank.

If that fixes it, put a filter on your fuel jug and on your fuel line.

Brad