I have been doing my own wrenching since 1981, but there were always a few things I avoided, one of which was changing tires. Last year, for the first time I decided I had to figure it out because I had four tires to change (Chang Jiang, 2 on the bike, 1 on the sidecar, and 1 spare). Other than viciously burning myself by misguidedly trying to warm the tires up under my radiant garage heater, the process was actually pretty easy. It did both tires on my flat tracker a few weeks ago no problem.
Watch some YouTube, get a set of irons, borrow the dish soap, and crack a cold one.
If you can wait a bit, I am going to change a 16" on a mag .... soon but probably not before this weekend. You are cordially invited to come by and watch.
Peace, Grease & Rubber, Dennis