PIAGGIO MP3 500 i.e. SPORT Service Station Manual page 272

MP3 500 i.e. SPORT Business_LT_ ABS-ASR_EU_USA (2015)
Injection
Circuit leak test
Install the specific tool for checking the fuel pressure, with the pipe fitted with the gauge.
Check during regular operation by placing the ap-
propriate tool between the pump and the injector.
With the battery voltage > 12 V check that the fuel
pressure is ~ 3 bar and that the input current is ~
1.8 to 2 A.
With the battery voltage > 12 V, check the pump flow rate by disconnecting from the injector the pipe
equipped with the pressure gauge of the appropriate tool. Prepare a graded burette with flow rate of
approximately 1 L. Turn the pump with active diagnosis of the PDA. Using a pair of long flat needle-
nose pliers, choke the fuel pipe making the pressure stabilise at approx. 3 bar. Pay attention not to
choke the pipe too much, as the pressure remains unchanged while the flow diminishes. Check that
within 15 seconds the pump has a flow rate of approx. 300 cm³.
Specific tooling
020480Y Fuel pressure check set
Fuel filter check
Disconnect the terminals from the electric pump
Remove the screw indicated in the photograph
INJEC - 272