A lot of time, depending on how long they have sat, you need to run brushes through the passages and other areas. In the jets, a strand of copper wire works great to clean those tiny holes.
I noticed that you removed the front fender. It works ok but I might suggest a fork brace. These old forks are kinda flimsy without one. Many just pop the rivets on the front fender and use the mount as the brace as that is part of its function.
The ride IS the adventure. The destination is just to get gas!