OH! Here's a story of a near-huge-F-up...I was changing the spark plugs. I thought the manual said 75 ft-lbs for the torque. So, I'm tightening it and am thinking "this seems really tight". So, I checked the manual again...7.5 ft-lbs! If I had kept going, I would have stripped the threads and it would have been a major repair. That does make me wonder though...why don't they make the threads on the spark plug the weaker threads? That way, if you do something stupid, it's clean out the threads/cylinder and buy a new spark plug.