Yes, make sure you have fuel going to the carby, also make sure the fuel is fresh, I have been finding out that fuel doesn't last as long as it used to. Also, cleaning your carby is a good idea as well as cleaning the screen in the fuel tap in the tank. If you have an in line filter, it may be worth replacing it if you suspect it to be builing up with dirt/gum.
Here is a link to a free service manual, he also has a free download for RAR extract frog, which I think you will need to open the manual when you download it.
http://www.timtaylor.net/Scooter/Manuals.htmThere is a thread in the general section, (I think it is on page 3 at the moment), with links to service manuals. Hope you have some success, if you have the spark, you should be able to get it going without too much trouble.
Cheers,
Sid.