Spark Plug CR8E or CR8EK?

For an 03 YZ250F

I know CR8E is stock but I happen to have a brand new CR8EK that I bought for my old KTM but didn't use.

Should I stick with the CR8E or put in the CR8EK?

:naughty: good question! :naughty:

CR8EK, works good. :naughty:

Go to NGK's website. Somewhere on there they have a good explanation about their plugs and what that K stands for.

Thanks I figure it would be fine but since it wasn't offered as an option I thought I better check.

The only option listed was the iridium version of the CR8E.


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