Precautions - PIAGGIO 500 cc Service Manual

PRECAUTIONS

1 - Before proceeding with any repairs concerning the fuel injection system, check for the presence of registered
anomalies.
Do not disconnect the battery prior to checking the anomaly.
2 - The supply system is pressurized at 300 Kpa (3 BAR). Before disconnecting the quick-connection of a supply
system tube, check that no open flames are present and do not smoke. Act with caution to avoid spraying into
the eyes.
3 - During repairs on electrical components, the battery should remain connected only in cases of necessity.
4 - When carrying out functional controls, ensure that the battery tension is more than 12V.
5 - Before attempting to restart the engine, ensure that the tank holds at least two litres of petrol. Failure to respect
this regulation could damage the fuel pump.
6 - If a long period of inactivity is foreseen for the vehicle, fill the fuel tank to more than half-full. This guarantees
that the pump will remain immersed in the petrol.
7 - When washing the vehicle do not place pressure on the electrical components and cables.
8 - When ignition irregularities are revealed, begin controls by checking the battery and fuel injection system.
9 - Before disconnecting the EMS control unit connector, carry out the following operations in the order given:
- Set the ignition switch to "OFF"
- Disconnect the battery
Failure to respect this regulation may damage the control unit.
10 - When mounting the battery take care to not invert the polarity.
11 - So as not to cause damage, disconnect and reconnect the EMS system connectors only if it proves necessary.
Before reconnecting, verify that the connections are not wet.
12 - During electrical controls do not forcefully insert the tester prods into the connectors.
measurements which are not foreseen by the manual.
13 - At the end of each control carried out with the diagnosis tester, remember to protect the system connector with
the appropriate cap.
Failure to respect this regulation could damage the EMS control unit.
14 - Before reconnecting the supply system quick-connections, verify that the terminals are perfectly clean.
Fuel injection
Do not take
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