are you sure its the forks? whats the symptoms? low speed wobble (tank slap) could be neck bearings too loose or maybe tire pressure. high speed wobble (bagger wobble) theres a list of stuff to check.
tightening forks - bolt on each side on cinch bracket and fork nut on top of fork
this tool helps a lot. http://www.jpcycles.com/product/562-589
and you have to make the other tool
the video shows you the basics. there are other videos as well. not hard just a lot to take off to get to it