Had the same, or similar anyway, thing happen this past weekend. I have the XT with a OS .46AX. Everything is new out of the box. Engine fired up on the first flip! Flew it last Wednesday evening for it's maiden after the engine was set up and had a good first flight. Packed er up pretty happy with everything. Sunday afternoon took it up for a flight and all seemed well. Set it up for another flight a little bit later that afternoon and it would idle good, transition good, taxi out to the runway and on take off roll she kept wanting to die on me. Bring it back to the bench and set up the throttle again and it would do the same thing when I tried to take off again. One of the other flyers from the club tuned it and again, when I went for take off throttle it died. I guess it beats a deadstick on climb out, but it sure was frustrating at the least!

Since this is my first glow plane, and the engine has only had about 3 tanks of fuel run thru it, I'm sure it needs tweaking fairly often as it continues to break itself in. Just wish I knew more about doing that myself. I know it's set up rich for break in purposes but not having spent the time with glow yet, I worry about leaning it too much too soon. Since my instructor is also the owner of the LHS I use, we'll head down there Wednesday evening and get it set up again. Hope it works this time. Been flying my electric trainer for the past 5 months and everyone kept telling me I'll enjoy the glow even more. Right now I'm not so sure lol..........