I finally got a new coil, got it running, cut some wood with it In the excitement I forgot I drained most of the gas out of it so I only made a few cuts but it went like stink. I filed it back up and it stared but it surged up revs with no throttle so I shut it down. I couldn't get it to restart so I took it back to the garage. Pulled it part way apart, ring is still in it can't see any scoring, plug looks OK, no viable leaks in the intake. I did try resetting the carb adjustments and they were both like 1/4 out... That doesn't seem right. Also looked to have a bunch of spit back in the intake elbow. I'm going to try the other carb I have, maybe it will work better. Otherwise I've got to check harder for air leaks. I hope it's not the oring under the oiler.