Where are spark plugs?

Just bought a 197 and got some new plugs to put in as it’s misfiring slightly. Are the plugs at back of engine or under inlet manifold?
In the centre of the engine, there are 4 black pencil Coils, fitter with connectors, Push the little tab on the front of the connector down, and the plug will disconnect, with a bit of wriggling. BE CAREFUL, as the wire is a little thin. Each black coils, had a bolt attached, which you need to remove. DONT drop them when removing. The coils will pull of with another bit of wiggling..DONT remove the plugs, without clearing out the holes they are in. Use hoover, or anything available,Use tissue to clear any water that in there, THEN remove plugs. Take your time.Any problems, just ask.
 
  • Like
Reactions: DanceMonkeyRS200