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    1993 200 HP XRi EFI runs rough at idle and up to around 1800 RPM then smooths out

    1993 200 HP EFI, recently replaced spark plugs (NGK), water pump, adjusted oil injection. The engine runs rough at idle, in gear it gets worse and continues until I reach 1800-1900 RPM. Then the engine will run very well. Engine has lots of power, out of the hole and top end. I have had 2...
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