Can a single person do this task and what are the tools needed to break the bead and mount the tire?
1. Its not that hard if you have every thing you need
2. It's been a few years since I've ever done this, but since ATV tires run such a low air pressure, most of the time replacing a tire is fairly easy. Sometimes standing on the bead will break it loose after you pull out the valve core. I used to use a small bumper jack to break the bead, and then two large screwdrivers with some tape or something on them to protect the aluminum rim from being damaged.
3. Most stock atv rims are steel,except for the performance models.Use lots of dish soap around the bead of the tire,that will make it come off ultra easy.A couple large screwdrivers will do the trick.Make sure that you pull the core,or it will be harder to break the bead,assuming that there is air in the tire to begin with.If the bead gives you a problem breaking,hit it with a rubber mallet.It's easy to do,and one person can do it.
4. You should be able to do it yourself. I do my own tires. I would recommend having someone that has done it before help you. There are some little tricks that make the process much easier.
5. If you don't have an ATV tire "bead breaker", don't even think about doing it yourself. Bring it to a shop. Using a $3000 Coats pneumatic bead breaker, mechanics still have a hard time breaking the beads on quad tires. Com'on mechanics, back me up on this.
6. ill agree its a pain in the rear i have an old 3 wheeler and had to cut the tires off with a utility knife and break the (bead) which is usually a cable molded into the rubber and their a pain oh did i say that again a car tire is much easier...