I did a very stupid thing yesterday, I bought a Tach Multimeter and wanted to check it out, I turned the fuel on and hit the starter button but it would not start and about the time I rememberd I had the fuel pump out is the same time I smelled the gas. . About half a gallon of gas was on the pad beneath the bike and my garage still smells like gas.
Lesson learned, when you take out a part of the fuel system put a tag or something on the valve to remind you not to turn it on.