well today i changed out the plug that was bad and regapped them all to .45 . Put them all back in and it started right up and ran smooth. I didn't take it out of the garage but all sounded normal just revving it alittle. I'm going to try to find someone around here that has a borescope that can look in there to verify i didn't chip a piston or something. And to answer your question yes i've continually scanned for KR since i've had my scanner and i don't have any at all.