My understanding is the service manual is not available to non-authorised persons, i.e. the general public. I think RE may be worried about liability if something goes wrong if you use it. We get given snippets of information (i.e. valve check sequence) though third-party websites like this and YouTube but not the entire manual.
Most manufacturers will not hand out their service manuals for their current range of bikes, or if they do, they'll charge a considerable sum for it. They'd like you to go back to their authorised dealers for the maintenance work.
Most manufacturers will not hand out their service manuals for their current range of bikes, or if they do, they'll charge a considerable sum for it. They'd like you to go back to their authorised dealers for the maintenance work.