Thanks Paul, yes I keep looking at the same diagram.. and I have the location on the down tube in the hole. Looking at the diagram should the spring locate on the left side (against the small arm for brake switch) or to the right side for the thicker arm that locates the brake are/rod)
I hope that makes sense.. I'm going to feel silly when I work it out , but with the swingarm on its very tight so I may need to drop the swingarm back out.