The bearing look like not completely seated but it is. I used a heat gun to heat the case and the bearing fell in. Maybe I had the bearing in the freezer too, -25C.
New bearing on the other side too, inside the counter shaft holder? Same there, heat and it will fall out. The small O-ring here must be replaced to ensure oil pressure.
I had issues with clutch pressure plate at last rebuild, the bearing just fell out. I had another clutch with fresher plate and bearing to use.
New cush rubbers in primary chain hub? Available from Germany and France (France link in hipo forum)
1 Satz Ruckdämpfer Primärantrieb Honda CB 750 Four, inkl. Nieten 50,00 EUR
http://www.fourever-classic-parts.de/index.php?option=com_content&view=article&id=26&Itemid=31