Dellorto 7185 check valve ball VHB accelerator pump 17939100

GU17939100  Check valve ball for Dellorto VHB 29 and 30 accelerator pump as fitted to most 1969 to 1979 Moto Guzzis: Ambassador, V750 Special 1969-1971, Eldorado, 850GT, V7 Sport, 750S, S3, 850T, T3, T3, Convert, G5, 1000SP, CX100.Guzzi part number 17939100, this is the little tiny plastic ball inside the accelerator pump piston that often becomes gummed up and sticks, preventing the one way flow of fuel into the carburetor throat.