My machine is running fine. I went looking for a a leak. When I removed the seat I found about 18 inches of fuel line attached to the top of the tank (on my left, facing the machine from in front) with a brass fitting. The other end of this fuel line was not attached to anything and had a drop of fuel on the end. I could not find a place to attach it (it was a little dark though.) A friend said it might be a vent line and maybe it is supposed to be tied in a loop as he has seen on 4-wheelers and snow machines. The online parts catalog is not detailed but might indicate it is supposed to attached to the top of the tank on the other side of the machine. Any thoughts?