Canadian Dave,
Thanks for your reply. I already know my manual is wrong as I checked it against the illustration in the tech tips. I bought the manual back when I had a 96 KDX 200, and since the bikes haven't changed, I just keep using it.
I guess I will work on my friends bike this Thursday. If all that has to be done is to pull the head, that's not too big a job. I will look into the exhaust port first, though, since I would probably have to pull the pipe anyway.