PIAGGIO Beverly 125 Service Station Manual page 162

Engine
- The screw final position should be determined by an exhaust fume analysis.
- Adjust the carburettor by turning the screw twice from the close position.
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.
Inspecting the valve and needle
Kehin
- Check that the tapered pin of the vacuum valve
does not show wear.
- Check that the depression valve does not show
threads on the external surfaces.
- Check that the vacuum intake hole is not clogged.
- Check that the diaphragm is not damaged or has
hardened, otherwise replacement the whole valve.
- Insert the tapered pin into the vacuum valve
housing.
- Reassemble the vacuum valve on the carburettor
body taking care that the tapered pin is inserted
into the sprayer.
N.B.
THE VALVE CAN BE INSERTED IN ONLY ONE POSSIBLE
POSITION.
ENG - 162
Beverly 125