If you do a search on oil slinger you will come up with some old topics, Go through them 1 by 1 and you should come across a link of a video clip showing you how to put in a I.R.K and oil slinger. But i put one in my provert on the weekend only drama i had was i had to pull my motor out of the bike because ive got a twin spar frame and icould not get to 1 bolt on my case.