Help - have a new BME 50 and having trouble. Here's what I have:
BME 50 w/ CH ignition - 1400 mah battery (battery tests fine)
22-8 Zinger Pro
20oz tank w/ 3 tube setup ( carb/vent/fill)
32:1 gas w/ lawn boy oil
no issues w/ RF noise or chatter


run#1 about 5 min - started and ran fine
run#2 ran fine - flew 5 min and engine started to stumble when accelerating - then went to where throttle had no effect - only just above idle
run#3 started but would not accelerate at all - idled fine but would not accelerat much above idle regardless of throttle
run#4 reset needles to factory starting place (1 1/4 idle and 1 1/2 high) started and flew entire 10min ok
run#5 started and ran fine - flew 4min and then acted like run#2
run#6 started and ran like run#3
replaced ignition switch
run#7 just like run#2

I am at a total loss. I am on my way down to FL for the JR Challenge and can't get this thing going. I need any help before I turn around tonight and head home.

Thanks!