500 Twinair air filter, spark plugs & coil replacement

Remove the three bolts with a 10mm socket. The air intake hose on the right can then be lifted out of its bracket.



The next step is to remove the Clic-R clip on the hose at the front left of the engine cover. I borrowed the 'correct' tool from a friend (I think they're Sealey) but to be honest, they're too weak to undo the clip so I just flipped it open with a flat bladed screwdriver.




Now you are ready to remove the engine cover. Slide it towards you, if you look down the back of it you will see the locating plug:



Keep pulling it foward until it is free. Remove the air hose (the one with the Clic-R clip on it) and the engine cover will be free.