When Your Yanmar 6LPA-STP Overheats, Smokes or Loses Power
A Yanmar 6LPA-STP that overheats at cruising speed needs a different investigation from one that cranks slowly at the dock. Black smoke with reduced engine speed can point toward excessive load or an air-path problem, while a low oil-pressure alarm requires an immediate response before further testing. The useful starting point is the exact symptom
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