This float set works on our aftermarket CT70 Carburetor as well OEM carburetors for the KO-77 models.   Its much easier to just swap out your old float if it has a hole in it rather than trying to repair it.  Or if your original carb has a lot of time on it and you are doing a carb rebuild, its a good time to replace your float as well. Its a high quality float and exactly like the original that will work for many more years to come.