I second all of Justin's comments above.
You want to loosen the TOP triple clamp/yoke pinch bolts, but don't do the bottom ones.
I'd keep something under the front wheel to block it up until you're ready to lower-away.
Again, no need to remove anything inside the fork tubes like the allen-head filler caps, etc. as they'll just
go for the ride with the fork tubes. Once the top stuff is unbolted/removed, you might need to
coax the steering stem and forks to drop with a rubber mallet or using a wooden block to cushion things
with. Having a helper to pull a little (down & forward) on the tubes and being ready to "catch" it if things
decide to move all of a sudden is a good idea, too. Be patient and don't swing like you're splitting wood !
The lower bearing on my bike was fairly well stuck on the steering stem, but as long as it isn't damaged that
doesn't matter as you don't need to remove it.
Leaving the fender, fork brace, lower yoke, and front wheel&axle all in place should keep the tubes pretty well
aligned so you shouldn't have any issue with misaligned/non-parallel tubes. You just have to make sure
that you check the top of the tubes when you reinstall to make sure that they protrude the same amount
above the top yoke/clamp. The beauty of this process is that you can leave the brakes, etc. all connected.
You might want to consider unhooking the clutch cable before removing the front end, as it seems to have less
slack than some of the other cables, at least on my bike, anyway.
You'll want to check the races and steering head areas as well as the bearings for damage, and carefully clean
out any dried up grease and crud. There are a variety of products that work pretty well for cleaning up old
grease, etc. I use high quality dino-based wheel bearing grease to repack the bearings. Synthetic stuff might be more resistant to turning to
hard jelly over the years, but you don't need to use high temperature rated grease.
I was inspired to get out into my garage this evening and start tearing things down to at least examine what it is going to
take to repair the clutch on my bike. It is cold, windy and snowy today, so I only got things as far as removing the seat,
battery&holder, fuel tank, and airbox before the unheated garage made my fingers too stiff to work right. Now, I'm back in
the house, warm fire in the woodstove, and some good single malt scotch in my glass..... aaaaahhh !