Must be a Stateside issue JJ. Here in the UK I got one with my eFI X-Town 300?
I think we're talking about two different things here.
An owner's manual will come with every new scooter, unless lost at the dealership.Owner's manuals give instructions on how to operate your scooter. ..(not how to fix it) and often include technical info like tire pressures, oil types, capacities, bulb specs, etc. and the "maintenance schedule" to keep your scoot healthy and safe.
A maintenance manual is also known as a service manual.....neither of these are the owner's manual.
There are many service/maintenance manuals for new and old Kymcos. Carbed and EFI.
One source for these "how to fix your scooter" manuals is
www.cyclepedia. com.
Stig