tombenn444
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Anybody able to explain this?
Mystery
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DieselTech
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Prolly from 1 of the additives that's in the fuel, or possibly the type of oil you are running causing it.
DieselTech
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Try going 1 spark plug heat range lower.
Chainlube
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If your plug is red, then it's too cold. What plug do you have in there now?
DieselTech
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I'd say he is close to being in the OK range by this chart. Looking at OP plug.
top right in the chart is what I'm looking at along with his plug, I would definitely agree with Chainsaw on the too cold a plug theory, or maybe a really huge gap.
Chainlube
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It all depends on how long the idle was before the plug was checked.
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