Hello,

I just purchased a Hangar 9 Alpha 40 with the Evo .52 engine. I've started it with brand new fuel, but when start to rev up the engine starts to rev up and down quite a bit. It will often take a few seconds to either rev up or slow down, but it does this consistently. Because of this, it is almost impossible to tune. I have put about three tanks through it. Originally, I had it set too lean (I think) because it would die when I'd point the nose up. Also, I tried a couple take-offs and it would die right when it got enough speed to take off. My biggest frustration is that it revs up and down, so I'm kinda blind with the tuning. I believe I started with the HSN 1.5-2 turns out.

Ideas???