Gilera Fuoco 500ie LT Manual page 75

Each bulb has two light beam adjusting screws, one for horizontal adjustment «C»
and one for the vertical adjustment «D». Adjust each headlamp at a time. In order to
do that, remove the connector from the other bulbs so that you can adjust one head-
lamp at a time.
N.B.
THE HEADLAMPS CAN ONLY BE LIT WHEN THE ENGINE IS ON. ADJUST THE
LIGHT BEAM IN A WELL VENTILATED PLACE.
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