Carbuerator arrived with the end of the mixture screw broken off. It was #6 to be non tamper and with a very narrow piece by neck and limiting cap. I called about it as I know there is a very small adjustment range these permit and I assumed they were set right. Also, on the choke lever, this one had two holes on the choke lever arm instead of a 3/4 in pin sticking up. I enlarged the appropriate hole and threaded a #6 screw in with two nuts to lock it. The carburetor installed perfectly and the mower runs like new. I would buy another carb like this if I couldn't find an exact fit one. With the exception on the choke pin, it is identical to OEM carb.