Piaggio Question

Hi everyone! V new to the moped community and I definitely have a lot to learn, just recently purchased a 2006 Piaggio with about 3000 miles. Seems to be in pretty good condition & I thought it was a good idea.

My question is that it doesn’t want to stay idling. Like at stop lights, etc.. if it’s not getting gas it kinda just dies and I have to restart. Happens whether it’s cold or warm.

Planning on taking it to a mechanic soon but thought I’d see if anyone here had any ideas on what it is/what can be done.

Thanks so much!!