THE EFFECTS OF REFORMULATED GASOLINE ALONG WITH CERTAIN USAGE OF THE FUEL SUPPLY VALVE AFFECTS THE SUPPLY OF GASOLINE TO THE CARBURETOR. THIS CONDITION REQUIRES TWO FACTORS: (1) THE USE OF REFORMULATED FUELS CONTAINING MBTE AND (2) STARTING THE MOTORCYCLE WITH THE FUEL VALVE HANDLE IN THE OFF POSITION.
THIS CONDITION CAN CAUSE THE FUEL FLOW TO BE UNPREDICTABLE THUS CAUSING THE ENGINE TO SHUT DOWN INCREASING THE RISK OF A MOTORCYCLE ACCIDENT.
DEALERS THE REPLACE THE DIAPHRAGM IN THE FUEL VALVE.