I have a 2001 Vespa ET2. It starts fine and I am able to ride it for about one or two miles before it acts like it is running out of gas then it stalls. I am able to restart it after it sits for about two minutes then the process repeats itself by riding for another two miles before it acts like it is running out of gas and stalls.
I took the carburetor apart, cleaned it and installed a new air filter and it did not fix the problem. I was thinking the fuel tap might not be working correctly. Thank you for your help.