Listen boy, you are a full blown idiot that continues to post bad advice. I have forgotten more about working on cars than you will ever know. This is your quote exactly:@ Phil: you're retarded. never in any of my posts did I say "to take a plug out of head, and touch it while turning over". Also, I never elaborated on the extent of the zap.
You do an extremely good job of putting words in people's mouth's on here.
There just isn't enough "juice" in these 12v systems. Spark plugs will just zap you.
OK boy wonder, if the plug isn't out of the head, how could you get zapped by it and if it wasn't being cranked or running how would it zap you? You would argue with a sign post, why don't you just scurry back to your text book and keep reading.