VESPA GT 125 Workshop Manual page 182

Engine
Level check
Kehin
- Place the carburettor inclined as shown in the
figure.
- Check that the float reference is parallel to the tank coupling surface
- If different positions are detected, change the plunger control metal plate direction to obtain the position
described above.
Walbro
- Make sure the float coupling surface is parallel to the tank surface with the carburettor in inverted
position.
- If different positions are detected, change the plunger control metal plate direction to obtain the position
described above.
- If the plate gets deformed, make sure it remains parallel to the float pin.
N.B.
WITH INVERTED CARBURETTOR, THE FLOAT WEIGHT SHOULD NOT EXCEED THE TAPERED
PIN SPRING THRUST. OTHERWISE, CHECK THAT THE FLOAT IS NOT HEAVY DUE TO FUEL
INFILTRATION. REPLACE THE FLOAT AND THE TAPERED PIN, IF NECESSARY.
- Wash and blow the carburettor duct cover prop-
erly and introduce it in the starter nozzle.
N.B.
INCORRECT ASSEMBLY OF CARBURETTOR DUCT COV-
ER ON THE STARTER NOZZLE CAUSES A NEGATIVE
COLD START-UP SITUATION: THE STARTER NOZZLE
TAKES UP THE OLD FUEL FROM THE BOTTOM OF THE
TANK.
ENG - 182
Vespa GT 125-200