Mikuni-Solex 40/44PHH enrichment diaphragm [MS509AD]

Mikuni-Solex 40/44PHH enrichment diaphragm [MS509AD]

This diaphragm suits some Type R, Type T, Type S4 and Type S5 Mikuni-Solex carburettors

It has a stem length of 8.9mm.  Some carburettors use a shorter 5mm stem.  Diaphragms with the short stem are currently unavailable, so if yours is the short version, you'll need to machine these down in a lathe, or by hand linishing.