PIAGGIO Vespa 125 1955 Manual Para Estaciones De Servicio página 56

Vehicle
Mod. VBA - Difficult carburation
VGLA.
32
Fault
2/1) Vespa 150/VBA from VBAlT - 46096 to VBAlT - 73198:
and starting
3/i) Vespa 150/VBA from VBA 1 T - 73199 and Vespa G. L.
- Substitute the air corrector to main jet coded 200 with that
- Substitute the mixer coded E l with that countersigned BE l.
- Substitute the main jet 95 with that coded l 00.
- Substitute the existing air cleaner - bellows-choke control
Operations to carry out
and Vespa G. l. from VGLA 1 T - 019285 to VGLA 1
T. 021265:
These vehicles are already mounted with the air regu­
lator plate; it is advisable mount group carburettor - air
cleaner as mentioned above.
from VGLA 1 T - 021266:
The previously mentioned procedure can be followed,
or the existing carburettor can be utilised if modified
as follows:
Substitute the jet cover coded 90 with that countersigned
140.
countersigned l 85.
cable with the corresponding parts indicated on the spare
parts list for carburettors with starter device, coded SI
20 /17 C ( air cleaner with larger section air intake and
choke valve inside the filter in correspondence to the
carburettor Venturi opening).
N. B. - On mounting the carburettor with starter, to avoid
interference between the air cleaner body and the external
upper zone of the crankcase half in correspondence to the
clutch housing, lightly file down the above mentioned zone.
Q