spark plug changing

remove the 4 bolts and take off the engine cover,
the plugs sit down into the head under the rubber covers on the sparkplug leads.
need a long extension on the plug socket to reach the plugs. removed the old plugs[do them one at atime so you don't mix up the leads]
check to see that the new plugs you have bought are gapped correctly, 1.05mm , they are usually correctly gapped from the pack but is best to check.
Start the new plug into the thread by hand before tightening with the socket handle and tighten to the directions on the pack usually hand tight plus 1/4 turn. this is firm tight not overtightened.
It isn't a bad idea to use a small amount of antiseize compound on the plug threads to stop them seizing in next time you want to remove them.