I have a twin 16 hp b&S on my 79 wheelhorse, engine model 401417 type 0130-99 code 79011512, last week I put a carb rebuild kit 694056 on it and followed the instructions, after I reinstalled it and I let run for a while I had a mixture of oil and gas come spraying out of the crankcase breather tubes, I changed the oil, removed the carb and checked everything again, float level, that the float was not full of gas, needle and seat several times. I reinstalled the carb, started it and after 10 min of looking down the throat of the carb to make sure I couldn't see extra gas pouring in, Someone pulled up in front of my house and I went to see what they wanted and about 10 minutes later remembered the motor running, there it was it had sprayed all of the gas and oil out of the breather tubes again , engine still sounded ok but who knows , What am I doing wrong, Thanks for any help in advance Skip