Triumph in particular is notorious for this. For most bikes made beyond 2018 or so there are nearly no 3rd party manuals available. You have to pay, quite literally by the page or by the hour, to view the manuals on their website.
For older bikes its often easier. Clymer's has a substantial library that are often better than even the dealer mechanic book. I'm the mechanic among my group of friends and newer bikes are exceedingly difficult to not only work on, but also find proper manuals for.
Triumph in particular is notorious for this. For most bikes made beyond 2018 or so there are nearly no 3rd party manuals available. You have to pay, quite literally by the page or by the hour, to view the manuals on their website.
For older bikes its often easier. Clymer's has a substantial library that are often better than even the dealer mechanic book. I'm the mechanic among my group of friends and newer bikes are exceedingly difficult to not only work on, but also find proper manuals for.