No single one procedure works for every saw, some are more difficult than others. If i had to do it all over again, i'd get a tach first, check my saw before fooling with limiters at all. My Echo CS 530 was the easiest to remove. I marked everything before starting, removed them with a drywall screw, put carb screws back to orientation marks. Tach arrived a few days later and upon checking, found saw to be 400 rpms below max rpm., just right for a new saw. Some times trimming ears is easier than removing whole limiter cap.