Remove the lower fairings.
Remove the seat
Raise the tank.
Remove the air box cover and air filter.
Remove the velocity stacks.
Remove the bottom half of air box.
Disconnect the fan motor connector.
Remove the lower radiator mount bolt.
Remove the upper bolt.
Push the radiator forward to make some room to work and be CAREFUL not to screw up the radiator fins.
Disconnect the ignition coil connectors.
Remove the ignition coils. They are tough to get out the first time.
*(If you can, blow out the spark plug holes with air to remove any debris thats in there.)
Remove the spark plugs.
Inspect the plugs and use a wire type feeler gage to measure the gap. If you can fit a 1.0 mm (0.04 in.) gage then replace the plugs.
Install the spark plugs. If you use the old plugs, torque them to 9lb.ft. If you use new plugs then snug the plugs by hand and tighten them a 1/2 turn.
Now put everything back together reverse from removal.

Good luck and take your time.