Chance aren't good you'll find one. Most manufacturers didn't produce them and the ones that did generally filled them with generic safety information. However, a factory service manual for your specific motor/drive is invaluable. Let us know what powerplant you have an we can help you find the appropriate manual.
Like this one?
I have a 1996, there really is not anything unique about this boat or any other boat.
You can get manuals for the engine, controls, electronics, etc. via the manufacturers.
I need a boat manual for a 1998 20ft. Sunbird boat fish/ski