Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Hey Guys,

Do you use resistor sparkplug or non-resistor sparkplug on your OPE?  Accordingn to NGK "it strongly recommends using resistor spark plugs in any vehicle that uses on-board computer systems to monitor or control engine performance. This is because resistor spark plugs reduce electromagnetic interference with on-board electronic."  Just curious what you guys use for your OPE?

MN_Runner wrote:
I believe the non-resistor type spark plugs emit radio frequencies that can cause sensitive electronics problems.  When I converted my vintage Yamaha two stroke motorcycles from analog points/condenser ignition to digital ignition, I had to change to resistor plugs. 

I doubt that you would notice a difference on a snow blower if it doesn't have digital ignition.  However, if operating a machine with non-resistor plug near any devices that involve radio waves, there may be interference caused by the plugs.   I think non resistor type plugs used in machines designed for them as in the original points/condenser systems on my old Yamahas, generate a better spark than a resistor plug in the same application.   Otherwise, I'm unaware of any reason to use a non-resistor plug in any modern engines.

Someone said there will be less interference with the cell phone usage.  I am not advocating cell phone usage during OPE operation.