• Jet, Idle #45 - SHA/SHB
Small Frame Vespas have only two jets: a main jet that the needle passes through, and an idle jet.

Idle jets come in only two sizes: 42 and 45. Generally, Vespa 50 and 90 use a 42, and Primavera/ET3 use a 45.

Jetting is something that takes trial and error. See our blog of jetting instructions for more info.

Jet, Idle #45 - SHA/SHB

Scooter Carburetor / Fuel System

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150584

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