Vespa POLINI Dellorto Carburettor Idle Jet Kit Si 20.15-17 20/20 24/24 26/26 (55-58-60-65-68/160) Tyres and Inner Tubes Black Primer

Black Primer

cone 20/20mm

Not Suitable with front crashbars

R1 stands for rear = rear with fixed damping

Vespa POLINI Dellorto Carburettor Idle Jet Kit Si 20.15-17 20/20 24/24 26/26 (55-58-60-65-68/160) Tyres and Inner Tubes Black PrimerVespa POLINI Dellorto Carburettor Idle Jet Kit Si 20. 15 17 20 20 24 24 26 26 (55 58 60 65 68 160) The side jet of the SI carburettors does not have the simple function of a conventional jet, i. e. the pure quantity regulation of the fuel quantity. With the introduction of the PX 1977 the SI carburettor type and its side jets were modified. The old carburettor types, such as those still used in Rally engines, had a separate air duct for the side jets.