Quote Originally Posted by DanDaMan View Post
looks self explainatory , unplug sparkplug wire , plug the gadget to sparkplug and push wire onto the sparkplug shaped tip , start it up , if see spark its workin

dont believe its for full time use just diagnostics when having starting problems , I normally test if I have spark by sticking 1 finger into plug wire and another (same hand) onto the plug itself and cranking it :o zap zap zap zap yup its got spark
LOL, yes I know that. Our NGK plugs and our spark plug wire don't use a threaded adapter like some plugs that screw over the threads of the spark plug.
Our wire "snaps" over those threads. The Harbor Freight "tool" has the adapter machined on the bulb side of it. It's too large to fit into our plug wire.
Now let me ask you guys, is the spark wire removeable at the coil end? Seems tight, I don't want to yank it out and then be looking for a coil. If I can remove it, I'll make an adapter for it.