Choke diaphragm specifically for the Weber DIR carburetors.
These diaphragms now tend 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 air leaks.
Replacing the diaphragm is then the only sensible option.
Please note that Weber has treated us to a variety of these diaphragms through the years so please make sure that this is the correct one for your carburettor.
The other varieties can be found on the Weber DIR parts page which can be found HERE.
To make it easier for your determine if it is the correct one for you, here are some specifics:
- Straight stalk
- Total height, measured from the dish on the back of the diaphragm to the top of the stalk: 40 mm
- Heart-to-Heart distance for the screw holes: 35.9 mm
And to make it easier for you to visualize this, here is the image:
Required quantity per carburettor: 1
This is item number 30 in the drawing.
Weber Part Number: 47407.122 / 47407122