My fiancee has a 2005 Honda Rancher 400 with the automatic transmission. It has almost 1,900 miles and about 290 hrs on it. Recently I have noticed that oil is dripping out of the air filter and filling up the little clear debris catcher that is attached to the bottom of the air filter housing.

It still runs great like it always has so what could be causing this to happen? It didn’t use to do this. The air filter is fairly new.

Thanks for any help.

Wayne