VESPA GTS Super 125 i.e. Service Station Manual page 139

Vespa GTS Super 125 i.e.
Remove the gas command fitting as indicated in
the picture
Refitting the butterfly valve
To refit, perform the operations in the reverse or-
der from the removal operations being careful to
position the clip fixing the throttle body to the air
filter bellows at 45° as shown in the photograph.
Injection
INJEC - 139