CalculatedRick: I tried to upload a scan from the factory manual related to valve seals, but the pdf file was too large. So here's the step by step from the manual.
-------------------------------------------------------------------
1. Turn the crankshaft so that the No. 1 & the No. 4 pistons are at top dead center (TDC).
2. Remove the cylinder head cover & the rocker arm assembly.
NOTE: When removing or installing the rocker arm assembly, do not remove the camshaft holder bolts. The bolts will keep the holders, springs and rocker arms on the shaft.
3. Remove the fuel injectors and the wire harness. [I didn't do this step when I replaced my valve stem seals.]
4-6. [Steps 4-6 refer to the factory recommended Snap-on valve spring compressor YA8845 with YA8845-2A 7/8" attachment. I won't list the steps here since you probably will be using a different valve spring compressor.]
Intake Side:
7. Insert an air adaptor into the spark plug hole. Pump air into the cylinder to keep the valve closed while compressing the springs and removing the valve keepers.
NOTE: Put shop towels over the oil passages to prevent the valve keepers from falling in to the cylinder head.
8. [more stuff here about the snap-on tool]
9. [Using your valve spring compressor] compress the valve spring and remove the keepers from the valve stem. Slowly release pressure on the spring.
10. Remove the valve seals.
11. Install the valve seals.
12. Install the springs, the retainers and the keepers in reverse order of removal.
Exhaust Side
13-18. [Repeat the same procedure you used for the intake side.]
19. Repeat steps 6 to 18 on the other cylinders. [What they mean is: move the crankshaft 180 degrees so that the next cylinder is at TDC. Then pressurize that cylinder with shop air and remove the intake and exhaust springs and seals, etc.]
-----------------------------------------------------------------------
Here's an illustrated guide (for a different engine) that will give you a good idea of what is involved:
***How-To*** Install Valve Springs & Valve Stem Seals - Honda-Tech
I used this tool for removal and installation of the springs and keepers:
ValveMaster valve keeper tool
It is probably a good idea to do a compression check or a leak-down test before you replace the valve stem seals. If you have bad compression or one or more leaking valves then you should attend to those problems. You should also be aware that you can have good compression, but still have frozen oil control rings. This turned out to be my situation. I had high oil consumption but good compression, so I replaced the valve stem seals. It didn't help with the oil burning however. When I tore down the engine I found that the oil control rings were shot. Some people have suggested that SeaFoam might be a possible cure for oil control ring problems.