Thank you for your input! I finally got all my parts and tools in the mail, mac tool for the speed sensor included. I will be tackling these replacements in the next few days.
Another thing I noticed yesterday: It was very hot outside, but I had to ride across town from where I work for a Dr.'s appt. I stopped by my house to switch from a tank bag to a small backpack as its on the way to the Doc's office. I went back to the bike after about 2 mins, and as I was riding away from the house, I felt like I could feel some shake right under my butt at low RPM! At first. I thought maybe it was a rough patch of road or something, but it seemed to continue along a stretch of road that was otherwise flat and in decent condition. Anybody else ever felt a rumble in similar conditions?
I had a distinct "click / clack" when I hit a 1/2" curb thing going into a parking lot. I got new tires and most of that went away. I just did a new chain and dug into the rear and found no problems (none that I could see).
I have no idea how a new tire could have caused that, but I suspect wheel bearings and there was a funny noise when I was testing out the new chain on the stand. It came from the rear, then went away.
I put 100+ miles since then and no problems.
Point: I'd check your tires and balance. A tire over 5 years won't be mounted by most shops. My tires were 12 and 10 years old.
First look at the tires and find that thread about putting the suspension back to stock settings. I think the rear shock is 1/2 way on preload and 1.5 turns for rebound. Look at the shock bolts for damage or loose.
You'll need a center stand or wheel lift sooner or later, Harbor Freight has one that I got and with the 20% coupon is about $30.
Lube, adjust and check the wear of the chain.
I just posted a few threads about my chain. I was so worn that you could fit a screwdriver UNDER the chain while it was on the rear sprocket.
Grab your chain at the 3:00 position and pull as hard as you can, this tells you the wear. You can also check for stiff links and alignment. I've had a tough time keeping the chain tight, so I have to adjust over and over again.