Exhaust emission control system
The exhaust gas emissions control system must work in conjunction with an electronic
fuel injection system (EFI), which requires no adjustment by the client. The idle speed
and fuel air mixture can only be adjusted by an Authorised Piaggio/Vespa Service
Centre with specific electronic instruments (diagnostic tester for scooters). The ex-
haust gas emissions control system is separate from the evaporative crankcase
emissions control system.
Crankcase emission control system
The vehicles are equipped with an evaporative emission control system consisting of
an activated carbon canister with the relevant pipes. This system prevents the escape
of fuel vapours from the fuel tank.
Tampering
WARNING
WARNING: TAMPERING WITH THE NOISE CONTROL SYSTEM IS PROHIBITED.
FEDERAL LAW PROHIBITS THE FOLLOWING ACTS:
A) REMOVAL OR RENDERING INOPERATIVE BY ANY PERSON OTHER THAN
FOR PURPOSES OF MAINTENANCE, REPAIR, OR REPLACEMENT, ANY DE-
VICE OR ELEMENT OF DESIGN INCORPORATED INTO ANY NEW MOTOR-
SCOOTER FOR THE PURPOSE OF NOISE CONTROL PRIOR TO ITS SALE OR
DELIVERY TO THE ULTIMATE PURCHASER OR WHILE IT IS IN USE.
B) USE OF THE MOTORSCOOTER AFTER SUCH DEVICE OR ELEMENT OF DE-
SIGN HAS BEEN REMOVED OR RENDERED INOPERATIVE BY ANY PERSON.
AMONG THOSE ACTS PRESUMED TO CONSTITUTE TAMPERING ARE THE
ACTS LISTED BELOW:
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