On the workshop manual for the 3 cylinder model it shows spark plug removal in 2 stages. The first Remove Throttle with motor body Assembly It shows a pic of the engine and indicates the relevent parts 1, water filler cap sub-assembly, 2, water inlet drain plug. 3, radiator drain plug Method.. Loosen the radiator drain plug and collect the coolant. Dispose of it correctly. Remove the water filler cap sub assembly Connect the hose to the water inlet drain plug. Remove the water inlet clip. Pull out the water inlet drain plug. Remove air cleaner hose Remove throttle with motor body assembly Disconnect the 2 water by-pass hoses. Disconnect the throttle body connector Remove 3 bolts, nut and the throttle body Remove the gasket from the intake manifold. Disconnect the 3 ignition coil connectors Remove the 3 bolts and the 3 ignition coils Remove the 3 spark plugs Hope this helps David