Problems of contamination, excess fuel

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Javier

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Nov 13, 2022
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I have a 961, 2017. It has excess fuel, black spark plugs, black smoke when accelerating thoroughly ... already check and clean all the parts of the injection body and lambda probes .. any idea how to lower those levels?
 
Javier said:
I have a 961, 2017. It has excess fuel, black spark plugs, black smoke when accelerating thoroughly ... already check and clean all the parts of the injection body and lambda probes .. any idea how to lower those levels?
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Might be better posted in Modern Norton Motorcycles
 
Stu I hope will chime in. Could it be fuel pressure regulator. Sneaky way to richen a system was to increase fuel pressure
 

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