ORIGINAL: motoman326
Sorry folks I should have mentioned that....
Yes I have backed out the needle valve in increments (first 1/4 turns and then 1/2 turns) after each adjustment I would raise the nose and still the engine would sputter and then quit at vertical.
Well then, you do have a problem!
I wasn't trying to be pedantic, but it's good to know ahead that you went through the obvious basics of diagnosis. As I'm sure you know, on RCU many people post problems that turn out to be simple user error.