That's great news Pete except for the breathing problems - you need to listen to some expert advice on that subject by the sound of it.
You are the second person in a week to report a defective new spark plug on this site. However I do not think that was a big part of your original problem because I recall that you could hold onto the plug lead while your daughter pulled the starter cord. If you could do that with the plug lead disconnected from the plug and your other hand touching the engine, the ignition system was totally ineffective at the time: the machine should have been producing about 15,000 volts and that is more than enough to spoil your day. However you've been over that mower and fixed several problems, so I hope there aren't any left now. Even if there are, you are fairly well placed to fix them after the experience you've had by now.
I'll close this thread Pete, but if anything goes wrong please start another one, and of course join in the fun when someone reports a problem that you can relate to. It's a pleasure to have someone with your consistent good humour and determination on the site.
