2002 Mazda MX5

First remove plastic covers over the engine. Then release the tenfioner belt, before you do this make sure you have both cam pulleys with the timing mark aline. Release the cam tenfioner using an Allen wrench. Then remove belt. Making sure the sprocks are properly alined. Turn the engine over by hand with the spark plugs removed, to make sure the timing marks are in the correct position on both intake and exhaust cam shaft. Make sure the intake and exhaust cams line up properly before you turn the engine over. You may want to turn the engine over by hand to make sure your timing marks are correct. If they are off one tooth the car will run badly and have no power. Could bend a value.