Gilera Nexus 250 i.e. Manual page 38

NEITHER PUSH THE START BUTTON WHEN THE TANK IS EMPTY NOR TURN
THE KEY SWITCH TO «ON» TO AVOID DAMAGING THE INJECTION SYSTEM.
CAUTION
DO NOT START-UP THE ENGINE IN CLOSED AREAS BECAUSE EXHAUST
GASES ARE TOXIC.
CAUTION
DUE TO THE HIGH TEMPERATURES THE CATALYTIC CONVERTER CAN
REACH, ALWAYS TAKE CARE, WHEN PARKING THE VEHICLE, THAT THE EX-
HAUST DOES NOT COME INTO CONTACT WITH FLAMMABLE MATERIALS, TO
AVOID SERIOUS BURNS.
CAUTION
DO NOT SHUT OFF THE ENGINE WHILE THE VEHICLE IS MOVING. UNBURNED
FUEL COULD ENTER THE CATALYTIC CONVERTER AND BURN, CAUSING THE
CONVERTER TO OVERHEAT AND POSSIBLY DESTROYING IT.
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