Follow that hose!
I have noticed that my 919 has been leaving a small oil spot about the size of a quarter in the parking lot at work. I looked today and the oil is coming from the largest drain tube which comes out just in front of the swing arm mount on the left side of the bike. I followed the hose as far as I could without pulling covers, etc. and it looks like it goes up toward the top of the engine somewhere. Does anyone know where this hose goes? I'm concerned because it appears to be engine oil and also because I'm leaving spots on by bosses new concrete pad. The other thing that is odd is that it doesn't leak a drop in my garage. Could it be from sitting in the sun all day? Thanks for any ideas you might have.