I got this mower second hand have no history on it other than it would not start, so I replaced the carburetor & spark plug changed the oil & it fired up,, problem is it coughs through the carb about ever 3-4 seconds & causes a slight engine speed surge when it does. I am checking valve clearance tomorrow but is there anything else I should look at ? it starts right up withing a second of the starter engaging & runs really good aside from the cough through the carb... The mower itself is a 2016 model so the engine appears to be the same.
Last edited: