PIAGGIO X9 Evolution 125 2008 - Page 162

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.
- Reassemble the spring with the pin lock.
- Remove the cover of the vacuum chamber being
careful to correctly insert the spring in its place on
the cover.
- Tighten the screws to the prescribed torque
- Wash and blow dry the filter sponge of the am-
bient pressure intake.
- Reassemble the filter with its clamp.
- Wash and blow dry the starter support.
Assemble a new gasket on the carburettor body
and tighten the 2 fixing screws.
N.B.
THE VALVE CAN BE INSERTED IN ONLY ONE POSSIBLE
POSITION.
Locking torques (N*m)
Vacuum chamber cover screws: XX Nm
Engine X9 Evolution 125
ENG - 162