After years of wear and tear, the seats of the mixture screws on the Weber IDF carburetors have the tendency to come loose and wear out.
Very annoying as it renders these valuable carburettors virtually useless.
This special seat allows you to replace a worn one and thus restore the function of your carburetors.
Get those broken carbs off the shelf and back in your ride with this quick and easy fix!
Please note that these seats are of the "three step design with chamfered nose".
For the "one step design with barbed collar", please see HERE.
This item is NOT listed in the drawing.