Finally, I popped off the cap and rotor. The rotor was corroded, so I hit it with Emory cloth to clean it up. The aluminum cap terminals were also corroded so I gave them a redneck polishing with a flathead screwdriver. The low-buck tune up did its job 'cause the engine now purrs like a kitten. At $0.98 a piece for plugs, $16.45 for the fuel, and minus $200 for the Bestop sliders I have a running YJ for $320.37. Next month I'll show you how get the sludge out of the oiling system as well as give the vehicle a proper going over to get it road worthy.