Igniters won't stop Dacor Preference SGM466 Gas Cooktop. Tried cleaning and want to remove the burners. What is the correct way to do so?

Problem is the insulation on the spark wires is dried and cracked. I bet you can hear the sparking coming from inside the unit, rather than where you see the spark, correct? The excess voltage is grounding inside, rather than thru the flame. I believe you pull the burners off and tap those brass rings with a screwdriver/hammer (or buy the correct tool). Then you can lift the entire top off.