re: Can anybody help me troubleshoot my awesome lawn boy commercial push mower

Check the banjo bolt that holds the bowl onto the carb. I learned the hard way that the ports in that bolt get clogged and cause similar symptoms like you described.

I had taken the carb off and cleaned it and still had the same problem. Brought it to a small engine mechanic and that was the problem.

Use some fishing line or copper wire to run through the ports on the bolt and clean it out.