I picked up this engine to test out, thinking that OS would soon flood the market with them, but that didn't seem to happen. It sits on more or less the same mounts as a OS.32F or .32 SX and the same venturi fits, so it was an easy fit to my older Primary Force that has sported a .32F  for quite a while. The engine is a definite power house! Far ahead of the .32, and while it didn't exhibit any bad habits, I just could not tame it to match the .32. It could fly a model much larger and heavier that an old Primary Force. But I have lots of other engines for that, and as I don't like having just one of any engine, I decided to pass this one on if some one else wants it. I bought it second hand in like new condition and it is still like now with carb, muffler, but no paperwork. it still has the snazzy OS sticker sheet in the box!! These are listed  on eBay for well north of $200, but I'll sell this one for $160 shipped in the continental US or trade for something that will really blow my mind!! That is about what I have in it. I can email or text photos to any interested parties. PayPal, check on approval, money order , wampum, furs, pelts, whatever you have that might interest me. 
  Thanks for looking!
  Dan McEntee

   Just bumping this up after a long sleep at the bottom of the list!! Somebody give this poor urchin a home!! How about $150 shipped or trade me something cool that I might like better or don't already have??
  Type at you later,
   Dan McEntee