VESPA GTS 250 I.E. Workshop Manual page 192

Injection
11
Check the resistance at the injector ends: 14.5 ± 5% Ohm
Check that the injection load 10A fuse No. 3 is in
good conditions.
Check that the 7.5A fuse No. 2 for the live control
unit is in good conditions.
Check the efficiency of the injection load remote
control: Check the resistance of the energising coil
between pins 86 and 85: 40 to 80 Ohm
Apply a voltage of 12V to pins 86 and 85; make
sure that there is continuity between pins 30 and
87 of the remote control.
Check the power supply line of the injection load
remote control energising coil: after switching to
"ON", make sure there is battery voltage, for two
seconds, between the Red-White cable and Black-
Violet cable of the remote control base. If there is
not, check the continuity of the Red-White cable
between the fuse box under the saddle hinge and
the remote control base and of the Black-Violet
cable between pin 20 of the control unit and the
remote control base.
N.B.
CONTINUITY TESTS MUST BE CARRIED OUT
WITH THE COMPONENTS DISCONNECTED.
(REMOTE CONTROLS, CONTROL UNIT,
FUSES ETC.).
INJEC - 28
Specification
Electric fan starter
Vespa GTS 250 I.E.
Desc./Quantity