How do you take of a crankshaft pulley on a 2002 Mazda protege5?

take spark plug out of cylonder #1 and make sure the piston is all the way at the bottem. pour lucas fuel injector cleaner in bout halfe full. make sure exhaust valves are closed. and take the pulley of. motor locks rite up. it,ll just smoke a while once you start it up. done it myself