Float Bowl Drain Plug for the Mikuni carburetor on the Yamaha XV 125.
Replaces Mikuni part numbers: 12R-14191-00 (old) and 2L1-14191-00 (new)
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.