DeTomaso Mailing List: June 2000, Message #118

It sounds like as the mixture got leaner, the plug gap resistance got
higher.  I guess this is the basis for the Jacobs Ignition products as
they claim to set the spark for the conditions in the engine.  Al.

David Doddek wrote:
> 
> Any one ever watch an engine Idle at night in total darkness.  I was
> watching my Fairlane the other night and noticed that you could see sparks
> jumping all up and down the plug wires and they were new.  I also saw the
> spark plug light up when the cylinder would fire.  What was the most
> interesting was that as I leaned out the mixture the random sparking would
> get worse and if I made the engine run rich the sparking would almost
> dissapear.
> 
> Dave "it was so cool" D