Engine Spark Plug Fouling Frequently - Kohler Courage SV590 - LT1042

JoeFred

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  • / Spark Plug Fouling Frequently - Kohler Courage SV590 - LT1042
Even with a new plug gapped to specs, engine starts missing in about 30 minutes and then under normal load shortly loses almost all power. When I clean the deposits, the same thing happens in about 30 minutes. A possible sympton is that after starting cold, there is a small amount of smoke that starts in just a few minutes then stops after about 2 to 3 minutes. There are no signs of oil dripping on the exhaust. I use middle grade gasoline and Kohler oil. The problem only started after a full season of running fine. Your help will be most appreciated.
 
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BlazNT

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  • / Spark Plug Fouling Frequently - Kohler Courage SV590 - LT1042
Next time take a picture of the plug and post here.
 

SeniorCitizen

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  • / Spark Plug Fouling Frequently - Kohler Courage SV590 - LT1042
At the top of the link list for fouled plugs is Air/fuel mixture (A/F) too rich. Contained in those causes is a contaminated air filter.
 
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