Hi I am new here, I have an old 2005 Poulan Pro BB18542LT. It originally had the 18.5 Briggs and Stratton single ohv intek engine. I now have same type engine except its 15.5 hp. I can not get this mower to stop flooding gas into the oil. It started with the 18.5 engine and I purchased a complete brand new carburetor with new fuel solenoid. Still flooded gas into oil. It ruined the motor so I purchased the used 15.5 hp motor and still have same problem. I checked to make sure the fuel solenoid plug was getting power and it is. What can be causing these motors to flood so badly? Is there a certain way the fuel solenoid plug has to be plugged in because it will go in either way and I can here it click when the ignition switch is on no matter which way I plug it in. This thing is about to drive me crazy. Any help is greatly appreciated.