Re: Engine gremlin?
1st event
I have three Irvines that I fly on a regular basis and find them to be the easiest starting engines I have ever owned.
Correct priming procedure is to open the throttle , cover the carb intake with your thumb and flip the prop 3 or 4 times. Close the throttle and flip the prop twice more. Attach the glow driver and they start first flip every time.
15 flips with a wide open carb will achieve nothing.
2nd event
Glow pug on the way out or an air leak in the lines or tank.
Most likely an air leak.