I have an old Vespa Ciao 1974 moped that has been sitting in my garage for the past 4 years unused.
Last time I used it, it ran out of gas and I haven't started it since. Clean the carb, put some fresh gas/oil mix in it, and you should be good to go!
It was involved in an accident about 5-6 years ago (I was hit by a car on it) but it still ran afterwards.
The steering is a little off, but not a huge deal.
-pierce in Chicago/Pilsen