I work at a dealer and have direct access to KymcoUSA parts account, I can assure you they are NOT order-able separate, only as one "throttle body assy". Most likely the gasket they were waiting for was the o-ring that seals the intake manifold to the cylinder head. Or the MOST likely was that they didn't order the throttle body right away and were buying time saying that "we need to order an o-ring".
The part number listed on my copy of the completed warranty work order for the "SEAL Throttle ECU" is: 91302-LEB2-900
This # was not found in my searches - but 91302 are prefexes for various Kymco 0-Rings.
I say again - the parts in my scooter are new.
I have ridden it 3 times for 30 -45 mins and it is running fine.
Commuted to work at 35 Degrees Fahrenheit today - no issues. Glad to have that large lighted top case (Bestem 929) and Kymco's largish tail light behind me on these dark and cold mornings. Always thought the headlight was quite adequate for my night commute to work - but the twin headlights of the Forza are obviously much better for seeing the road. Some bikes have a pair of headlights - with one being the driving light and the other can be added for "brights". This Forza runs with 2 driving lights - both of which can be "brighted".
Plan to keep the LIKE until deciding something in the spring of 2015.
Thanks for the patience of all who have followed this Italian Soap Opera.
Ride safe out there.
Stig