Pick-Up; Multimeter Adaptor - Peak Voltage Detection - PIAGGIO Liberty 125 Workshop Manual

Electrical system
020409Y Multimeter adaptor - Peak voltage detection
Electric characteristic
High voltage coil secondary resistance value
High voltage coil secondary resistance value: ~ 3000 ± 300 Ohm

- Pick-Up

Detach the ECU connector and connect the posi-
tive terminal to connector no. 2 and the negative
terminal to connector no. 8 (see figure).
Crank the engine using the starter motor and
check the tension produced by the pick-up.
If unacceptable values are found, replace the Pick-
Up.
N.B.
THE MULTIMETER MUST BE SELECTED TO DETECT
CONTINUOUS VOLTAGE.
Electric characteristic
Pick-Up voltage value
Pick-Up voltage value: > 2 Volt
- H.V. coil
With the control unit and HV coil connected to the
circuit, measure the voltage of the coil primary dur-
ing the start-up test with the voltage peak adaptor
and connect the positive terminal to the earth one
and the negative to the coil positive connector.
If non-conforming values are measured, replace
the control unit.
THE POSITIVE TERMINAL OF THE HV COIL PRIMARY IS
BLACK.
Electric characteristic
High voltage coil voltage value
High voltage coil voltage value: > 100 Volt
ELE SYS - 54
Liberty 125 - 200 4tempi