what is this wire for?

[mick!]

Hi Graham thanks for replying.the bike came with a different fairing fitted but yes had both high/low beam  working..  previous owner had bodged a lot of bits trying to make a streetfighter- his words not mine-  I guess as it starts going back together  i'll find out what to do with it.. I have just bought a manual off ebay so will have a good read through when it gets here.. mick