Voltage Regulator Check; Recharge System Voltage Check - PIAGGIO X7 250ie Service Station Manual

Electrical system
1) Disconnect the connector between stator and
regulator with the three yellow cables as shown in
the photograph.
2) Measure the resistance between each of the
yellow terminals and the other two.
Characteristic
Stator phase resistance value
~ 0.6 Ω
3) Check that there is insulation between the each yellow cable and the ground.

Voltage regulator check

With a perfectly charged battery and lights off,
measure voltage at the battery poles with a high
running engine.
Voltage should not exceed 15 Volt.
In case higher voltages are detected, replace the
regulator.
In case of voltage values lower than 14 Volt, check
the stator and the corresponding cable harness.
Electric characteristic
Control voltage
14÷15 V to 1500÷12000 rpm

Recharge system voltage check

Connect an ammeter induction clamp to the volt-
age regulator positive terminal, measure the bat-
tery voltage and, turning on the vehicles lights with
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.
ELE SYS - 8
X7 250ie