The owners manual doesn't tell you how to operate the boat or much else IMO. I suggest you take a boating class as well as find a service like first captain to teach you how to operate the boat.
Engine and outdrive manuals can be found under Documents of this site.
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2