Instead of having to take the front sprocket cover off and whatever else you have to take off to get to the sprocket to replace your chain. Do the following.
1: Remove your master link.
2: Paper clip your new chain to your old chain (to the end hangin off the rear sprocket).
3: Pull your old chain out untill both ends of the new chain are accesible.
4: Remove old chain.
5: Line up one end of the new chain with the other end to mark where any extra links need to be removed. (Do this after you have moved your tire to almost as far forward as it will go) Mark it with a paper clip on the outer plate.
6: Opposite of step 2.
7: Opposite of step 3.
8: Remove the extra links (marked by the second paper clip) by whichever means are available to you.
9: Repeat step 2.
10: Repeat step 3.
11. Attach master link. Open end of clip pointing in the opposite direction of chain travel.
**Note: You can safety wire your master link by inserting a wire just behind the master link plate and twisting the wire on the side with the clip. Bend the twisted bit of wire (about 5mm twisted legnth) in the opposite direction of chain travel as in step 11.