Depending on the bike, the beginning process will vary.
They are pretty easy though.
1. Remove front brake calipers and secure to keep weight off the lower brake lines.
2. Remove front wheel.
3. Remove front fender.
4. Remove fairing/nacelle as required (depending on specific model).
5. Loosen pinch bolts in the lower triple tree.
6. Remove the fork tube caps on the very top of the forks (I believe these are 1 3/8")
While you are removing the fork tube caps, the fork will start sliding out of the trees. Be sure to hold each fork leg as you do this.
Keep each fork tube upright, as to not lose any fluid from the forks.
Now you can remove the cow bells by taking out the two bolts that are on top of them, into the lower tree clamp.
Like I said, it's tedious, but not overly difficult.