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    Wildly surging RPMs

    This is a 2005 50ELPTEFI. It previously had been running fine but suddenly began having this surging RPMs issue. The video shows the issue pretty well. The engine will run as normal and suddenly begin doing the surging at idle. Throttling up and getting up to speed causes the surging to stop...
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    Intermittent "surging" issue

    This is a 2005 50HP Mercury EFI. It's been having weird fuel delivery issues that have been intermittent and displaying a wide variety of symptoms, making it really confusing and hard to diag. It started with low idle while warming up, to excess fuel spilling out of the VST at idle (twice), and...
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    2005 50HP EFI - Fuel spilling out of VST overflow at idle and also stalling at idle

    This is a Mercury 2005 50HP EFI outboard. The SN is 0T991605 Was out yesterday and noticed fuel coming out of the VST overflow, only at idle speeds. This hasn't happened before, and only happened for two times and idle speeds, then stopped. Later on, when putting the boat on the trailer, the...
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    Stiff throttle, and it's not the cables or shifter!

    I've got a 19 ft Carolina Skiff with a 2005 Mercury 50hp EFI 4 stroke that has a stiff throttle. It's not impossible to use and have been running it with a stiff throttle for a while now. It just takes more effort than it should. I hung the cables and dripped oil through them recently and tore...
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