Thank you, Mike and Pe, for the suggestions for making the engine run and possible reasons for its behavior. I closed the low end from the factory setting of 1 1/4 turn to 1. The engine started without choking and didn't appear to be running rich. I thought it strange it didn't require choking especially since it had sat for about two hours between attempts to start. I didn't change the high end setting. Transistion from idle was quick and smooth with no hesitation. Being a new engine I want to avoid running it too lean during the break in period. Hopefully, it will continue to perform tomorrow and not present new behaviors as it did before. If it does act up I might check the diaphram to make sure it doesn't have a tear. I had that happen once before but not on a new engine. Thanks again.