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    boat lift issue/maintenance

    Doesn't look like there's more suitable forum for dock issues but lmk if so. My lift is an air based system, two long cylinders/pontoons attached to metal frame. It struggles more and more each year, and even when the boat is completely lifted the pontoons are now 6" lower than they used to be...
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    two questions - temp sender and ignition coil

    4.5L 250hp Alpha One mercruiser i/o. Trying to locate the temp sender and the ignition coil. They're not obvious on a quick glance in tight space, and I can't find a schematic to help. Hoping they're accessible. Thx.
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    a different stereo/dual switch question

    Following some instructions from Crutchfield, I'm looking for clarification to a question I can't find here, apologies if I missed it. I installed a hi-power Sony head unit for more juice w/o having to add an amp. It cut out at higher volumes, and Crutchfield said I need to run the power...
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    reversing with trim tabs

    Hello all. I'm considering adding smart tabs, the "automatic" ones which you don't control from inside the boat and can't retract. If they're always down, how does it affect reversing?
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    2016 4.5L mercruiser i/o Very weak performance

    Just bought 2016 Hurricane Deck boat SS201. This 250hp engine is weaker out of the hole and planing off than the previous 150hp 2stroke EFI Merc o/b I had on a 2001 model of same boat. Don't think the hull has changed much even since way back then. I've got a guy telling me that's what...
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    2001 Merc 150hp efi beeps ONLY after bouncing hard over a wake

    SN OT323377. Does not give 3 beeps every two minutes or any other such pattern to help me identify it. If it takes a really hard bounce, it simply beeps but won't beep again unless you hit another big wake. No problems on flat water. No reduction in power, just the beep(s). I cannot remember...
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    Ghost in machine 2000 Merc ob 150 efi

    Sorry for the novel, wanted to be thorough. 10 hrs on Rebuilt power head, engine recently started shutting down out of blue on the water. No Sputtering, beeps or other warning. Has done it after 1 min on water following 5 min warmup in dock; also did it yesterday when it ran fine for 25 min on...
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    2000 2stroke merc 150 efi shutting down

    Hello everyone. Couldn't find a post with my exact symptoms. Engine starts and idles fine, about 3 mins later on water at medium throttle it completely shut down for a 1 sec then kicked back on like nothing happened. A few mins later, shuts down again (like a kill switch) to complete stop...
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    help - intermittent rpm loss on Merc 150hp (2000)

    Problem just started this past summer. Cruising along fine, then rpms drop. Not drastically, but maybe a couple hundred rpms. Calm water/choppy water, warmed up/not warmed up, doesn't matter. Will happen every minute or so, and drops only for about 10 seconds or usually less. This has the...
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