The 25hp Kawasaki on my 52" Wright Stander has been acting up. It doesn't run good at all, it acts like it's not getting enough fuel. In fact the fuel filter won't fill up right. Today when I went to start it it wouldn't turn over and then fuel leaked out somewhere around the exhaust. I then checked the oil dipstick and fuel had flooded the oil. Is this possibly a carburetor problem or what? Can anyone help me diagnosis it?