Honda CB550 Super Sport

Long story short, I recently bought a beautiful 1976 Honda 550 Super Sport, and am trying to fully restore it. The bike seems to be in great condition as far as the frame an parts go, but it is not running (Consistently) yet. The engine turns over, and I have been able to get it running via push start (but the bike only got into 3rd gear and had little power). I would like to get this thing running well, but am new to the motorcycle scene and need some help!

Background info: This bike has been sitting for quite a few years and has never been rebuilt. The odometer reads 19000 miles. I have cleaned the carburetors, replaced the fuel filters, purchased a new battery, and replaced the starter, but the bike still is not running well. I also bought new spark plugs, but have not been able to replace all of four of them yet because I don't have a socket that will fit into the two middle spark plug wells.
*no tuning has been done yet.

Finally, the bike has four cylinders, and I noticed that when finally I did get the bike idling for a minute or two, the exhaust pipe on only one of the cylinders (far right) became hot, and the other three remained cool. Is this normal for a four cylinder engine? Or is the bike currently running on just one cylinder?

You have 2 choices (1) pay a shop to do the work and have the bike done right or (2) do the work yourself w/a shop manual + the correct tools & parts

HI bikes of this vintage needed to be ridden hard if they where not they soon died as the honda motorcycle were usually ridden by teens who used to ride them hard. Misfires where common and new coil packs where needed frequently.

Like dude, there are rice burner restoration groups online. Like users groups and chatrooms and threads dude. Is your Google broke?

Stop!
Before you even buy that socket, get yourself a good repair manual.
Your new cycle has points ignition. By this time, it's possible that one of the condensers has gone bad. They deteriorate over time, even if not used. Be careful when checking/adjusting the points. It's possible that the plastic bushings have become brittle. If the holes are worn out of round, it will be difficult to properly set the timing.

If you can't locate a manual for sale, it may be possible to get one through your local library. I have done this before (many moons ago).

Adjust the points & timing.
Replace the condensers if you can locate new ones.