Re: Gas boiling in carb
A brand new, out of the box carburetor can have the float mis-adjusted from the factory or have a bad float that fills up with fuel causing it to become a won't float.
I recommend using an in line filter from a small engine or motorcycle shop.
These ones are great: http://www.amazon.com/QTY-Dirtbikes-...ne+fuel+filter
Norman made a great tutorial on the NT carburetors if that is the type that you have:
"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."