PIAGGIO VESPA RALLY 200 Operation And Maintenance page 33

WIRING DIAGRAM
Fig. 24 - Wiring diagram
NOTICE:
The loads on the bulbs and horn are connected in series with respect to the flywheel
magneto coils, whereas the switch units are in parallel to the bulbs: the insertion of
the lights and horn comes about by opening (instead of closing) the relative control
switches.