Thanks Jerry!
Paul, This is my understanding that these are bullet proof engines. It came on a Nosen Mustang that was never finished and I had just picked up some new Retracts for it when I came into a Ziroli Fibergalss mustang nearly complete. My dilemma is weather to mount up the 4.2 which is basically new and was almost free to me or bust open the bank and put a DA 100 inline in it which will undoubtedly make me smile. I have certainly owned some great older technology engines that were great, like G62's and GT80's, that started every time easily and ran great. Do you think the Sachs is enough engine to pull the Ziroli with authority? I have a G62 in a Byron AT-6 and I'm not disappointed with that but you do have to fly it. I think I've gotten a little jaded as I have some 35 & 40% IMAC stuff that skews your idea of what performance is. In fact I fly jets for a living and I realize how little we fly in the RC world is scale powered. When I flipped the prop through very briskly with a known good plug and the grounding circuit squared away...no spark. Is there much to opening her up and checking the mag etc?