Oops...didn't know you had checked a manual, (didn't say), but I was sure it'd show an exploded view so you could see hose connections.
So, I guess *I* will be in trouble also...if MY scooter ever has that GTS (?) fuel pump issue (and the warranty will be expiring shortly)!
I wonder if Haynes (or Helm) puts out a serious service/shop manual for Vespa (with late/current models covered that is). If so, I hope THEY are more detailed.
Hopefully, one of the Vespa technicians here will be able to answer you...where's
Greasy when you need him?
⚠️ Last edited by cloudcroft on UTC; edited 1 time