I re-watch the earlier video of where you put the oil in for the tranny not the main one. I went back to my manual and saw that you did indeed put it the right spot and then deleted my comment. Some of the garage mechanic use 90-75 weight oil, but the manual calls for the same oil for the main(10-40w) oil. Its work out that the leftover oil will fill the tranny pefectly. The bracket under the rear brake cable also keep from giving you slack. I did not see if you put that bracket under the Tranny case. I was missing a bracket so I made my own and got it attach using a hammered out angle bracket. Its the bracket that also the Carb fuel tube overflow dump.
Easiest way to stick a bearing in is to refrigerate the bearing while put the swing arm in the sun and get it hot. They pop right in fast. The seal is for packing the bearing with grease before you put the inner seal in. Do you have a analog or digital speedometer? If you have to replace the bearings in the swing arm, then I would recommend replacing the bearings for the front wheels as well, mine started to give out a few month apart from the swing arm bearings. Then I read that the garage usually recommend to do that because they will often be uniformly worn. Which I fret about replacing the bearings in the rear shaft.
