BEby, did this bike fall over? It is equipped with a vehicle down sensor that will cutoff the fuel pump. It should reset itself after the bike is vertical and the ignition key is cycled off and on, but there is also the possibility that the sensor itself is bad. Do you know if fuel is getting to the cylinders? Can you hear the fuel pump running? Are the spark plugs wet with gas?
In the meantime I would tape up or somehow protect the bare end of the yellow wire in case it accidentally finds its way to the positive battery terminal.