Hey guys

I have a 2000 Explorer 250 4x4 that I've had for a year now. My brother bought it new and I just changed the Spark plug. It had a NGK resistor plug in it. I called the local dealer and asked about running a non-resistor plug and he said that it probably wouldn't work. The "radio interference" would give me running problems. He told about a Triumph that had come in the shop that would run for around 2 minutes and go dead, restart right up and go dead after 2 minutes. Finally blamed it on the nonresistor plugs when it should have had resistor plugs. Is there anyone running nonresistor plugs? I put one in mine and ran it on the rack at work for an hour with no problems. Anybody have any ideas?

Thanks
O.P.

 

I always ran the non-resistor plugs without a problem (B8ES). Now if your radio starts making noise I would definitely change it.[img]i/expressions/face-icon-small-happy.gif[/img]

 

that's about what I was thinking. the reason I was really wondering was I had a NGk plug that was one of the EV series that is supposed to be more resistant to fouling.
O.P.

 

I run a BR9EV with my Scrammy. I have always run resistor type plugs, but I don't think it really makes a big difference. May cause some interference with radios or even some cycles, but I think it is rare. Here is what NGK has to say on the topic.
&lt;SPAN class=smallplain&gt;At the moment the spark jumps the gap it causes a high frequency burst of energy, this is known as ')"&gt;<a class=blueTxt href="javascript:glos('RFI')">RFI</A> (radio frequency interference). This is why resistor spark plugs were introduces in the mid 1960's. Placing a resistor within the spark plug suppresses the ')"&gt;<a class=blueTxt href="javascript:glos('RFI')">RFI</A>. Without resistor plugs in your car you can experience static on your radio as well as interfere with other sensitive electronic equipment. Some later model vehicles as well as newer Powersport engines must use resistor plugs for a proper "talkback" to the electronic ignition. Outboard marine Capacitive Discharge Ignition (CDI) such as used on some Johnson and Evinrude marine engines require a special inductive type resistor ( as used in NGK Z-type spark plugs). Use of non-inductive resistor type plugs on these motors can cause misfire and poor performance. For automotive CDI high output ignition systems systems (such as Mallory, MSD, Crane and Accel), refer to Resistor plugs for race engines in our racing and tuners gallery for information relative to modified motors.&lt;/SPAN&gt;

 

You know NCSrambler you have wayyyyyyyyyy
to much time on your hands...........[img]i/expressions/face-icon-small-wink.gif[/img]

Dana

 

I hope that was cut and paste.LMAO[img]i/expressions/face-icon-small-wink.gif[/img]

 

LOL, that is true Dand... [img]i/expressions/face-icon-small-smile.gif[/img] Yes, it was copy and paste.. I type pretty quickly, but... I try not to if I don't have to. Just like to help.

 

thanks NCSrambler
I've been an automotive mechanic for 7 years and that's what I had always heard. I've even had some cars in the shop with cheap plugs or wires that bled through into the radio causing lots of weird noises but I didn't realize that the quads and bikes had sensitive enough electronics that this might be a problem for some of them.
Thanks for the info
O.P.