That is supposed to be there. There should actually be 2 tubes that come out the bottom of the bike (at least on the 2009 - 2012). One is the fuel tank breather hose, and the other is the fuel tank drain hose.
2009 ZX-6R (65,695 miles and counting) | www.ZX6R.us | www.Seaton007.com
M4 GP Slip-on | ASV C5 Levers | Spiegler SS Brake Lines | SpeedoHealer | PureONE Filter
Custom FE | Custom Blue LED Lighting | K&N Air Filter | Vortex Sprockets -1/+2 | EK MVXZ Chain