Vespa PX 125 150 euro 2 User Manual

Voltage regulator check
Voltage regulator inspection
In the event of a suspected failure of the voltage
regulator, carry out the following inspections:
Alternate current section
The failure of the alternate current section of the
voltage regulator give rise, depending on the type
of fault, to the following inconveniences:
1. Blown light bulbs (regulator open-circuited).
2. Failure of the lighting system and automatic
choke device (regulator short-circuited).
Interventions
FAULT 1
At 5,000 rpm with the lights on, check the regulator
voltage is between 12.3V and 14.5V. At 5,000
rpm with the lights on, check the regulator voltage
is between 13V and 15V. In the presence of a reg-
ulator voltage exceeding 15V, replace the regula-
tor as definitely faulty.
FAULT 2
a) Check the correct current supply from the alter-
nator: detach the regulator connector and attach
the alternate current tester between the grey-blue
wire terminal and earth. With the tester set onto
alternate current, check the supplied voltage at
3,000 rpm is between 25 and 30V.
b) If no faults are found, replace the voltage regu-
lator.
c) If the system is still malfunctioning after the reg-
ulator has been replaced, check the connections
of the electrical system.
Direct current section The failure of the regulator's
direct current section may cause, depending on
the type of failure, the following inconveniences:
3) Blown fuse (regulator short-circuited), resulting
in the catastrophic failure of the battery charging
system.
Vespa PX 125 150 Euro 2 Electrical system
ELE SYS - 45

Vespa PX 125 150 euro 2 Specifications

General

Brand	Vespa
Model	PX 125 150 euro 2
Category	Scooter
Language	English