Voltage regulator check
With a perfectly charged battery and lights off,
measure voltage at the battery poles with a high
running engine.
The voltage should not exceed 15.2 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.
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
8A, repeat the test using a new regulator and/sta-
tor 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 when the engine is on
(see figure).
If no voltage is detected, connect the multimeter
negative terminal to the ground lead and the pos-
itive terminal to the automatic starter orange cable;
Electrical system Liberty 125 - 200 4tempi
ELE SYS - 56
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