I did this procedure with my bike when I was changing the damper shaft bearing.
You can find out how to do this by clicking on the link.
Article «Engine removal and refit» from section «Engine and systems → Engine repair» from repair manual of motorcycles «Triumph Rocket III» 2004-2018 years of release.
motoinstruction.ru
Do not forget to unscrew the oil pressure sensor before removing the frame.
The whole procedure took just over two hours. A friend helped to remove the frame, it was a bit difficult alone.
