Vespa DELLORTO SI 20.15 - SI20-17 A,B,C,D float chamber gasket

Dellorto SI 20.15 and SI 20.17 A/B/C/D float chamber gasket

Made by S.I.P (Germany)

DISCO DEZ SEZ

"this gasket is only for the early rotary valve type engines using flap type chokes - machines include VBA , VNB. You may notice the angle of the gasket where the main jet is sitting is not the same as later carburettors"