DB it seems like I am just following up on you a lot lately. Do as DB suggests. Try a starter and the new fuel lines. One thing I would add. Try a glow plug with an idle bar if all else fails. I find it helps some in an inverted engine. I have heard of people using an OS type F 4 stroke plug in an inverted 2 stroke. I have never tried it myself. Just repeating what I have seen and read. It may be worth a last ditch try. Good luck.

Mark Shuman