You most likely have a carb leaking because of a bad float or sticking needle and seat. Being yours is a 1989 model it has some oil and dirt build up in the air silencer that it is washing down. My guess anyway.
ï¿½The world will not be destroyed by those who do evil, but by those who watch them without doing anythingï¿½ Remember what He has done and remember that He is not done yet! GOD IS GOOD