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Old 05-18-2026, 01:19 PM
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ccguy ccguy is offline
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Join Date: Jul 2012
Location: MA
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Default Champion Spark Plug Gap Confusion

I'm running a 1981 782 with a KT-17 II on Champions and always follow the Kohler Owners Manual (dated 12/95) for plug type and gap. It calls for RV15YC or RV15YC4 with a gap of .025 on Page 10.

It was brought to my attention that there was a Cub Cadet Corporation Service Bulletin dated 9/27/1993 that states that the "NEW Air Gap to be used by all technicians effective immediately is now .045" when using Champion plugs.

That's quite a size difference! What do the Kohler experts here recommend? I don't want any performance issues.

Many thanks,

ccguy
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