Just to get a general idea, I pulled the easiest plug (#4) to in…

Just to get a general idea, I pulled the easiest plug (#4) to inspect. It has the correct amount of tan ash on the insulator, indicating that the engine (or at least cylinder #4) is generally running well. I'll blast the plug clean before reinstalling it. I've already cleaned the cap terminals & rotor (they needed it).

Owner caption August 2017 · Photo 19 of 35