Hi Tyler and Converse,
Tyler, that first plug is a disgrace to the nation. Looks like a soak in some kero or diesel would be a good start.
Can you re-use the exhaust gasket after checking a full crank piston? I hate removing the exhaust on a power torque. I haven't done it on a full crank for many years, but I recall it was no walk in the park either.
Looks like you need to check the piston next Converse, to eliminate a scored piston as the cause.
