Gasket set for the classic SI carburetor series from Dell'orto.
These were used on all Vespa engines of the Largeframe series. The term Largeframe includes all Vespa manufactured from about 1957 (with the appearance of the Vespa VNB models) with rotary slide intake (the crankshaft  controls the mixture inlet into the crankcase, NOT reed inducted). This includes all VBA, VBB, VNB, VBC (Super) , GT, GTR, GL, TS, Sprint, Rally and the PX model series.
This gasket set is available is the large set (with float needle)The gasket set includes all rubber and fiber gaskets, but not the paper gasket for the float chamber. This can almost always be reused if in good condition.In addition, it is often included in the engine gasket sets so many people already have these gaskets in abundance in their assortment.
 
BGM ORIGINAL Carburettor gasket set, suitable for the following carbs/Vespas:
 Dellorto SI - SI20/15, SI - SI20/17, SI - SI20/20, SI - SI24/24, SI - SI26/26 - Vespa PX, Sprint, Rally, VNB, VBA, VBB, VBC (Super), GT, GTR, TS, GL, LML Star/Stella 2-T