I have a 2013 X734 and found a hose in my yard that must have fell off mower. It is the same style hose and clamp that is on multiple locations of the mower for fuel. No clamp indentation on one end which makes me think it is a vent hose. Broken off piece of black plastic in other end with clamp. Hose is 30 1/4" long. Tractor still runs fine with no difference in run quality.
Any help with location would be much appeciated as I cannot find under the hood.