Wonderboy leaf blower problems

I have a 6 hp little wonder leaf blower. Couldn't run unless half choked. Rebuilt carb completely. Still wouldn't run and when I half choked It has little power. Next day go out start it runs fine. Next day half power wants to stall. Next day fine...... I got so aggravated with it I took out to a shop. Problem is they couldn't get it to act up. But as soon as I got it home, well you know the story. Any ideas or suggestions would be greatly appreciated.
Agitated in Bainbridge Ohio.
Thanks

Wonderboy leaf blower problems