VESPA GTV 125, Руководство по обслуживанию станции

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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 probe to the ground lead and the positive
probe to the automatic starter Orange cable; with
the key switch set to "ON" check whether there is
battery voltage; if there is no voltage, check the
wiring connections to the key switch and that the
15A fuse (No. 7) works properly.
If there is voltage, check again the ignition control
unit connector.
After disconnecting the starter, start up the engine
and keep it at idle speed; then check whether there
is voltage connecting the multimeter with the pos-
itive probe to terminal No. 5 (Blue), and the nega-
tive one to terminal No. 7 (White/Black) (see
figure).
If there is no voltage, replace the control unit after
making sure that the fuses are not blown; other-
wise, check the cable harness between the starter
and the control unit and, as a last resource, re-
place the starter.
Turn signals system check
- If the turn indicators do not work, proceed as follows:
-Disconnect the control unit connector and check that there is battery voltage between terminal No.4
(Red/Black) and the ground lead.
-Check that the same happens between terminal No. 4 and terminal No. 8 (Black).
-Repeat the check between terminal No. 5 (Sky blue) and terminal No. 8 (Black) with the key switch set
to "ON", with the emergency switch set to "RUN".
Electrical system
Vespa GTV 125
ELE SYS - 18