I don't recall the exact figure but, Ducati John did mine on the 800 recently and he mentioned something about the factory now doing it to some ridiculously high figure like 150-200Nm.
I replaced mine recently as I had the flywheel off...
Like Nelly says used Loctite (threadloc that is, not superglue!), but I used a 2p to lock the engine... Put it between the flywheel/starter teeth and Bobs your Dad's brother!