Haynes Manual Section 2-11
A bit of advise. You need to pull the rocker arm shafts out only about a half-inch to pull the camshafts, and no more. If you pull them out too far you'll unseat the closing springs and it’s quite difficult to reposition them. A half-inch is all that's needed.
If you find rockers that need replacement then you've got a cost dilemma. Put it back together and let Ducati pay for the parts (and labour if under warranty) or pay for the parts yourself and supply your own labour.
[Edited on 8-2-2005 by Shazaam!]