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My gasoline engine has black oily or sooty exhaust upon start up, what could be the cause?

April 26, 2017Black cause engine exhaust gasoline oily sooty

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My gasoline engine has black oily or sooty exhaust upon start up, what could be the cause?

1 Answer

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Black oily or sooty exhaust upon start up could be the result of a sticking choke mechanism or a carburetor that is faulty due to fuel contamination. Check the condition of the choke to ensure it is operating freely. Also check the condition of the fuel supply.