i take it you want to know how to take the security nuts off the back of the switch?if so use a centre punch on the edge of the nut and make a dent in it then knock it around anti clockwise it will undo.but keep it as its a special nut and needs to be reused unless you have a new one.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix motorcycles.