Found it under diagram F19 Wire Harness. I do not know where to start looking for the other parts the poster (JJJoseph) mentioned above.
Well, yes, the fuel pump and fuel injector will be listed here also, - but these diagrams only provide info for OEM Kymco parts.
Would involve some investigation, measuring, comparing photos, emailing, best-guessing - to source aftermarket non-OEM parts which will work well on a scooter.
Stig