I found oil in the bottom of my air box under my filter. I know i have a vent line for my crank case in there but why would oil get in there. I just snorkeled my bike. The only thing i did to my air box is seal my drain hole at the bottom and grease my lid. Could this cause the oil and should i do anything else to my air box. Im going ride this weekend and i want to make sure iv done everything i need to on my air box. Thanks for the help.