Casey, how much was it run over winter? Did it sit for a while? If it were me, I would likely change oil, maybe flush it, then give it a workout to see how quickly it returns.
I ran it only a couple times over the Winter, and checked the oil the day before plow day and the oil was perfect color, no sign of any milkyness. I am going to pull the carb, the breather, the fuel pump, and the oil drain when I get a chance and see what I can see in those areas, maybe even go ahead and rebuild or switch out the fuel pump (I have more). The fuel pump seems a most likely source of how the crankcase is refilling, especially if I determine gasoline in there.