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What plug should I be using?

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What plug should I be using?

Old 09-02-2010, 10:42 PM
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Default What plug should I be using?

Hi Guys,

I am running an XP254M Billet engine in my cat, turning 19,900 RPM and putting out 6.5 H.P.. I am currently using an NGK HIX-CMR9 Iridium plug down here in Houston, with temps are running in the mid to high 90's! Is that the right plug for this engine? Thanks.

Old 09-02-2010, 11:18 PM
Scott Schneider
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Default RE: What plug should I be using?

If engine is running well with carb needles set the way they are ..... Engines temperature is nice and warm .... and when inspecting plugs color finding it dark brown too med tan your just fine

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