honda99Re: Honda 9.9 4 stroke dies on idle I drained the carb by opening the drain screw - and even pumped a little gas through with the primer pump - that's what my mechanicPortable, Fuel Efficient, And Powerful For smaller 12' - 16' boats, the Honda BF9.9 is as convenient as you can get. At just 92 lbs. it's the first model to weh less