Spark plug replacement on a 02 buell blast?

Remove spark plug wire boot from spark plug.

Loosen spark plug using proper size deep well socket.

Once loose, continue removal, by hand if desired.

Gap new spark plug to 0.038" to 0.042:

Install and torque to snug tight, then turn additional 1/4 turn.

Install spark plug wire boot.

See following links for more detailed information