Here's a few videos to demonstrate the removal and mounting of tires if you are so inclined...
Removing a tire...
YouTube - SCUDMAN How to remove a motorcycle tire
YouTube - How to change a motorcycle tire (HD)
Balancing a tire...
YouTube - SCUDMAN Balancing
Installing a tire...
YouTube - SCUDMAN How to install a motorcycle tire
Removing a tire...
YouTube - SCUDMAN How to remove a motorcycle tire
YouTube - How to change a motorcycle tire (HD)
Balancing a tire...
YouTube - SCUDMAN Balancing
Installing a tire...
YouTube - SCUDMAN How to install a motorcycle tire