Always bring tools to access the battery. A good idea is to bring tools to access the top tube of the frame, i.e., those tools needed to remove the tank. So far the tool kit is rather small. To round off the kit, bring those tools that you used the most recent time you worked on your bike. Huh? Say you changed your oil. Well carry the wrench for the drain plug. Or say you had to adjust the clutch cable. Carry those tools as well.
Basic stuff eh?
Tips: Whenever you work on your bike, tag each tool with a bit of that blue painter's tape. That way you'll know which tools are needed in a hurry to work on your bike. And by simply looking at them you can decide what you want to carry with each ride.
Most stuff can't be fixed on the side of the road. However, you can fix a lot of carb issues. You can't fix a coil or pick-up coil or igniter. UNLESS you carry a spare. Carrying at least one spark plug and the socket/ratchet for it, is always good idea. Your cell phone is paramount.
Carry rain gear. Carry a hat. Carry water.
Take a gander at Chy's tool roll. He was able to do a lot of stuff with that this past SWTF rally.