It really isn't that hard.
Take your tank off completly.
Then remove the air box. There is about 4 hoses that connect to the box, plus the 4 clamps that hold it to the carbs.
Next is a plastic liner that needs to come out. This is a little tricky because you have to move it several directions to get it to come out of the frame.
Now you should see the head of the motor. Just pull out the spark plug wires and use the spark plug socket that came in the tool kit.
When you put it allback together be sure to put hte plastic liner back in. Not sure what it does, but I am sure it has a reason for being there.