SailNet Community - View Single Post - Ink black exhaust water - soot?
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post #3 of Old 05-28-2011
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bub is right,the black soot is caused by overloading the engine,yanmars are famous for this,what makes you think it needs to run at a higher rpm?throw the tach away and use your better judgement,higher rpm's should only be used in an emergency situation and only for a very short peroid
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