Well then, my first guess is your gas cap is not venting properly.
Edit: It also could be that your petcock is not flowing enough fuel through it, or the screen inside the tank is partially plugged up.
If you are not using an in line fuel filter I highly recommend using one. The stock petcock screens are best removed as they are notorious for causing problems and an inline filter give you the best protection from debris blocking the carburetor float valve and fuel jets.
"It's a chinagirl. It's a sometimes fun little engine that often will break your heart. It's disposable.
Does not come with a fortune cookie."
Last edited by GearNut; 10-22-2011 at 01:00 AM.