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    Mercury 150 EFI runs rough at low rpm´s

    Hi, my Mercury 150 EFI Outboarder runs rough between 650 rpm (idle gas) and 900 rpm´s. In idle mode without any gear (forward or backward) the engine runs fine. With more than 900 rpm the engine runs very fine up to 5800 rpms. I just checked the sparks and the gasilone connections. There was no...
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