2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 110Get this manual

2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 110

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IGNITION

Engine Occasionally Misfires

Engine Surges Over 6200 RPM While Under Load

NOTE: The engine (ECM) will retard timing and reduce rpm above 6200 rpm

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