I feel stupid asking this question, but I'm going to change the spark plugs and plug wires for the first time on my 98 Vulcan tonight. I was just looking at the spark plug retaining clips (those things that hold the plug wires in place next to the plugs on the front 3 cylinders) and don't know exactly how to open them so I can get the wire out. My Haynes book doesn't show how to open. I apologize for lack of a better description of this retainer but any help before I begin would be very much appreciated. It's a simple thing, but don't want to break anything.