Hi there all,

I have been using Evolution's .45 engine which came with P51 Mustang PTS. Engine has never given me trouble, but now a days, its giving me trouble, 3 times during flight it shut off/dead stick, and even now its giving me hard time to start, as it always starts with chicken stick with no trouble. I experienced the dead stick last sunday, before that, it never gave me that problem, but during inverted flight it flew ok, by the time I turned it straight, engine shut off, what could be the problem? I remember that I was using the fuel which turned little black due to sucking back the unused fuel from the airplane, with that fuel it never gave me trouble, but as I started using clean new fuel without any residue, it started giving me trouble, please help me, what can I do to fix that problem.

Thanks

Mody