Hmm, just got off the phone w/ the shop and he said the key was good... Stator isn't adjustable either, he said maybe the cdi box is bad, or bad ground?
silly questions.
Is piston in right ? hows the reeds ? carb on right ?
I have seen something like this, when I had the choke cable in wrong on the carb and also check the carb slider, make sure its on and in all the way.
Id re look at that carb.
That could be an issue , did you remove the switch from the Throttle housing ?
Gotcha , Never heard of soldiering them together before I don't think
Did you fit the reeds and carby boot?
If so, have you leak tested it?