Autolite Xtreme Sport Iridium spark plugs

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Oct 28, 2012
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#1
Has anyone used the Autolite XS61 Xtreme Sport plug in their KTM 50's or mini bikes? When we first started racing motocross my son was on a Cobra 50 jr and we were told to run that plug. So I bought 20 of them in a sell-out. Since then we have switched to racing hare scrambles on KTM 50 Sr's. My son just turned 7 and will be doubling up classes and will also be racing his KX65 on a 4.5 mile track.

Would it hurt to try and run the Autolite XS61 plug in the KTM? Has anyone tried it?