VESPA GT 125 Workshop Manual page 59

Vespa GT 125-200
- Check that the SAS valve plastic support is not
dented or distorted
- Check that the gasket is in good conditions
- Carefully clean the inside and outside filters. Re-
place them if damaged or abnormally distorted.
- Make sure the coupling connecting the secon-
dary air to the head is not dented, overheated or
distorted. If there is, replace it.
- Check that the metal pipe does not have any
dents
CAUTION
INADEQUATE TIGHTNESS BETWEEN THE SAS VALVE
AND ITS SUPPORT INCREASES NOISE IN THE SAS SYS-
TEM.
To refit, follow the removal procedure in reverse order being careful to respect the direction of the rubber
coupling connecting the SAS valve and the discharge system
Maintenance
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