VESPA LX 125 4T Euro 3, Руководство по обслуживанию станции

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- For maximum circuit, check the air adjustment is
correct as shown in the figure.
- For the minimum circuit, make sure the following
points are properly cleaned: air gauging, exhaust
section controlled by flow screw, progression
holes near the throttle valve.
- For the starter circuit, blow the connection pipe properly with the jet. This is necessary because the
nozzle support hides other inaccessible internal calibrations.
- Blow the intake nozzle properly.
N.B.
THE ACCELERATION NOZZLE EXHAUST IS EXTREMELY SMALL AND IS ORIENTED TO THE
THROTTLE VALVE. NOZZLE INCORRECT ORIENTATION RESULTS IN INADEQUATE SPRAY-
ING.
- Check that there are 5 closing ball joints for the operating pipes on the carburettor body.
- Check that the coupling surfaces, the chamber and the diaphragm are not dented.
-Check that the depression valve housing pipe is not scratched.
- Check that the throttle valve and the shaft do not show abnormal wear.
- Check that the plunger seat does not show abnormal wear.
- Replace the carburettor in case of irregularities.
- Check that the return spring of the accelerating pump rocking lever is not deformed by over-stretching.
N.B.
TO AVOID DAMAGES, DO NOT INTRODUCE METAL OBJECTS IN THE ADJUSTED SECTIONS.
Vespa LX 125 - 150 4T Euro 3
Engine
ENG - 137