Air cut-off valve for the REAR Mikuni carburetor on the Suzuki VS750 Intruder.
Comes complete with new spring and o-ring.
Replaces Mikuni part number: 13251-38A10
Although these carburetors were originally delivered on the above mentioned models of motorcycles, they are often transplanted onto other bikes and engines so the range that these gaskets might fit is much broader.
Alternatively, your bike might have been equipped with different carburettors during its life so please verify that this valve will fit your bike.
This is number R36 + R37 in the drawing.