PIAGGIO Beverly 500 i.e. Workshop Manual page 226

Injection
If a signal panel is detected which is not perfectly synchronised, corrective interventions are applied
used to reconstruct the cycle. In this case the self-diagnosis records the number of lost synchronisations
and signals the fault via the injection telltale light.
The light remains on during the period the cycle is reconstructed.
If the rpm-timing signal is completely missing due to mechanical faults or lack of magnetic activity, it
will be impossible to start the engine (or it will stop while driving) and the self-diagnosis will not be able
to record any faults.
To check the sensor and related circuit, proceed as follows:
1 - Connect the scooter tester.
Select the function "ERRORS" in the menu.
Check for any faults on the «Signal panel».
YES go to 2 NO go to 3
Specific tooling
020680Y Diagnosis Tool
2 THE FAULT HAS BEEN RECORDED IN MEMORISED STATUS:
The signal panel may be synchronised with possibility of starting. The fault is probably occasional.
N.B.
A NON-CONFORMING SIGNAL PANEL FAULT MAY ALSO BE DETECTED IF THE ENGINE STOPS
AFTER A FAULT INVOLVING IDLING.
THE FAULT HAS BEEN RECORDED IN CUR-
RENT STATUS:
The control circuit gave a negative result when
switching to "ON".
AHEAD go to 8
3 Select the "PARAMETERS" function on the
menu.
Check the number of «lost synchronisations»:
1 TOOTH and > 1 TOOTH
YES go to 4 NO go to 5
4 THE INDICATION INCREASES PROGRES-
SIVELY OVER TIME WITH THE ROTATION OF
THE ENGINE.
AHEAD go to 8
5 INDICATION = 1-3
THE RPM-TIMING CIRCUIT IS IN COMPLI-
ANCE.
Make an attempt to start and use the parameters
function to check for the «engine revs» indication.
INJEC - 226
Beverly 500 i.e.