Oil for air filter sponge
Mineral oil with specific additives for increased adhesiveness
03_09
Secondary air system (03_09)
In order to reduce polluting emissions, the vehicle is furnished with a catalytic con-
verter in the muffler.
To improve the catalytic converter functioning, a further quantity of oxygen is brought
in through the secondary air system (SAS).
This system allows more oxygen to be added to the unburned gas before it reaches
the converter, thus improving the action of the catalytic converter.
Air flows in through the discharge pipe on the head, after being cleaned by the filter
«B».
The system has a control valve that disables operation during deceleration in order to
avoid abnormal noises.
To ensure the best functioning of the SAS system, every two years the scooter should
be taken to an Authorised Piaggio Service Centre to have the filters cleaned
(Scheduled maintenance section).
The filter sponge should be cleaned with water and mild soap, then it should be dried
with a cloth and slight blows of compressed air.
03_10
Cooling fluid level (03_10, 03_11, 03_12, 03_13)
The engine cooling system operates by forcing circulation of fluid. The cooling circuit
contains about 2 litres of coolant consisting of a mixture of 50% de-ionised water and
glycol ethylene-based antifreeze solution with corrosion inhibitors. Recommended
coolant, supplied with already mixed and ready for use fluid. For proper functioning of
the engine, the coolant temperature must be between the 4th and 7th lit segment, as
indicated by the instrument «D» on the digital instrument panel. When the 9th lights
up, the icon and all the segments start flashing; stop the engine, let it cool down and
check the fluid level; if the result is normal, take your vehicle to an Authorised Piaggio
Service Centre.
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