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    OMC Cobra 5.7 gear shifting engine stumble, pop and smoke

    Thanks Kenny. I'll definitely do this! Here's what's needed for anyone that stumbles on this thread: https://a.co/d/5iSRBwP https://a.co/d/0RtL21r Attached is a schematic, and this YouTube video is a helpful explainer
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    OMC Cobra 5.7 gear shifting engine stumble, pop and smoke

    This thread is now closed. My engine had just backfired at low revs which probably had something to do with the new fuel pump and running rich. I tuned the carburetor and rewired the interruptor in series with the overstroke switch and I’m all good!
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    OMC Cobra 5.7 gear shifting engine stumble, pop and smoke

    So a bit of additional information from tonight’s troubleshooting, for whatever reason when they dropped a new engine in this boat and rewired it, only the overstroke switch (not the interruptor) is connected to the ESA. They have blanked two of the pins. So now I’m trying to also work out...
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    OMC Cobra 5.7 gear shifting engine stumble, pop and smoke

    Hi there, I have an OMC Cobra 5.7L (Chevy 350) in a Bayliner ‘88 Ciera. After successfully doing an electrical fuel pump conversion, I went to switch into gear, upon which it stumbled momentarily and then there was a pop and plume of smoke came from the engine bay. I tried again and it just...
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