VESPA 664787 Service Station Manual page 62

Electrical system
MAGNETO FLYWHEEL CONNECTOR
1. Pick-up (Red)
2. Voltage regulator (Yellow)
3. Battery positive (Blue)
4. Voltage regulator (Yellow-Blue)
5. Ground (White)
6. Electronic ignition device (Green)
ELECTRONIC IGNITION DEVICE CONNECTOR
1. Pick-up (Red)
2. Ground (Black and White)
3. Magneto flywheel (Green)
4. Not connected
AUTOMATIC STARTER CONNECTOR
1. Positive from voltage regulator (Yellow-Black)
2. Ground (Black)
OIL LEVEL INDICATOR CONNECTOR
1. Positive from voltage regulator (Orange)
2. Oil reserve warning light (Orange)
3. Positive from voltage regulator (Yellow)
4. Live Positive (White)
ELE SYS - 62
Vespa S 50 2T