Choke Inspection - PIAGGIO Beverly 250 USA Workshop Manual

Electrical system
engine off, wait for the voltage to set at about 12
V. Start the engine and measure the current gen-
erated by the system with lights on and a high
running engine.
In case the generated current value is lower than
10A, repeat the test using a new regulator and/
stator alternatively.

Choke Inspection

Refer to the engine section to check the resistance
and operating conditions of the component. As re-
gards voltage supply, keep the connector connec-
ted to the system and check that the two terminals
receive battery voltage with the engine on (see
figure).
If there is no voltage, connect the multimeter's
negative terminal to earth and the positive terminal
to the white wire on the automatic choke device.
With the ignition switch turned onto the «ON» po-
sition, check for the presence of battery voltage. If
no voltage is detected, check the wiring connected
with the ignition switch and the two fuses 15A (no.
8).
If voltage is present, repeat the check from the ig-
nition control unit connector.
After disconnecting the choke device, start the en-
gine and keep it idling. Check for the presence of
voltage by connecting the multimeter's positive
terminal to terminal no. 5 (white/green) and its
negative terminal to terminal no. 7 (white/black)
(see figure).
If no voltage is detected, replace the control unit
after verifying the integrity of the fuses, otherwise
check the wiring between the choke and the elec-
tronic control unit and if necessary proceed by
replacing the choke device.
ELE SYS - 26
Beverly 250 USA