Okay time to get dirty or unless your bike is really clean. I try and make sure my bike has been washed really good before doing a job like this as it helps with falling dust and grim.
1. Remove the gas tank and put it in a safe place. I have a square frame made out of 2x4 wood and angle the tank on it so the petcock is elevated. Reminder: Make sure the petcock is on and not on prime before removing it.
2. You will have to remove the coils. Before doing this draw a picture, notes, or take a picture. Make sure you know how the wires are routed and which coil mounts right or left.
3. Remove the horn as it will get in way at the front of the valve cover. Again take note of wiring etc..
4. My bike has the air valve thing removed and it uses the hose between the two reed valves on the valve cover. If your bike is stock you will have to remove the vacuum line and vacuum valve etc..
5. You need to tie up the cables and wiring out of the way for clearance to remove the valve cover. See Pic