PIAGGIO Runner 125 - Page 50

System description:
The air is drawn through a passage behind the secondary air box cover, passes through that cover and
flows towards the valve.
Now the filtered air enters the diaphragm valve to be channelled towards the head.
The air passes through a rigid pipe connected to
the head and reaches a discharge joint in order to
supply oxygen to the unburned gases before the
catalytic converter, thus favouring an improved re-
action of the catalytic converter.
- Detach the vehicle electric cable harness from its attachment fitting on the crankcase.
- Remove the 2 fixing screws, the gasket and the pipe connecting the SAS valve to the head.
- Disconnect the depression pipe from the SAS
valve
- Unscrew the 3 fixing screws of the SAS valve
cover from the flywheel cover and remove it to-
gether with the whole valve.
- Unscrew the 2 fixing screws of the SAS valve and
separate all the components.
Maintenance Runner 125 - 200
MAIN - 50