Pump Jet Pump Diaphragm Spring for a Dellorto PHF carburetor.
The original diaphragms now start to suffer from age and the ravages of aggressive modern fuels which causes the "rubberized textile" material to harden and even crack, causing erratic running of the engine and fuel leaks.
Replacing the diaphragm is then the only sensible option.
This product is priced and sold as a single unit.
Required quantity per carburettor: 1
This is item number 61 in the drawing of the Dellorto PHF carburetor.
This is an authentic Dellorto diaphragm, produced at the Dellorto factory in Italy, using tissue provided by Effbe.
This is Dellorto Part Number: 8555