Reply To: 9.5hp tumbling coughing

Home › Forum › Ask A Member › 9.5hp tumbling coughing › Reply To: 9.5hp tumbling coughing

July 23, 2020 at 7:38 pm #209642
Don
Participant

    US Member

    Well, it is running lean if it is coughing/sneezing. You mention that adjusting the low speed needle has no effect. Is the carb sync correct? Perhaps the carb butterfly is stuck open at lower speeds…This engine has some very strange linkage connecting the carb to the mag plate, it is easy to mess up…
    Have you had this engine running before, or is it new to you?