Mine has the 20hp briggs. I don"t think you need worry. It was a leftover 07 model I got last fall at a real nice price. I started using it this spring and had some problems with starting and running nice. So I changed the fuel cause it may have been 2 years old. helped for a bit but it returned to running rough. My best bet is they will need to clean the carb up. There was two of them when I got mine and one is still there. Ill bet that one will be bad also as soon as someone uses it.which engine do you have? I just bought an LT125 on Friday, want to know if I need to be on the lookout.