New to this forum, but not to Lawnboy mowers. I've had two over the last 30 years, and I'm trying to determine if my current mower is worth saving! When pulling the start cord, there was absolutely no resistance. I pulled the shroud to see if the teeth were engaging the flywheel, and all seems correct. I removed the blade to clean everything off good before working on the mower. The flywheel can spin in either direction with no resistance. I also noticed that the "prong" on the sparkplug is mashed down and there was no gap left. This was a big red flag to me. Is this all a sign of a broken piston rod? If so, is it the end of the road for my little green friend? I'm truly an amatuer, but have been able to do most basic services over the years. This appears to be over my head, and I would appreciate any advise. Thanks from Kevin.