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    MErc 60hp 4-stroke EFI shuts down, sometimes.

    Hello, everyone. Motor: 60hp Merc EFI 4 stroke, 2013 vintage. Boat: Lund 1650 Rebel XL, 2013 vintage. Under floor fuel tank. Problem: Fuel starvation (suspected) Symptom: Idles fine on startup (without squeezing the fuel line bulb), but occasionally sputters to a stop, regardless of throttle...
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    Merc 60hp EFI 7 years old, shakes, limited power

    Hi folks : Ran like a top all weekend. Today, I’m getting shaking which I’ve never seen before, and not getting to full power. Here’s the gunny thing (I think). I’m seeing exhaust coming from both sides just above the little anodes on the lower unit. I have a video but don’t know how to post...
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    Fuel cooler water leak

    Hello, everyone. Last fall while putting the boat to bed I noticed some white scaling deep inside the motor and traced the problem to a tiny pinhole leak near the top of the fuel cooler. You can see it in the picture. The leak is quite minor and the engine is being cooled properly. I tried to...
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    Water leak coming from......?

    Hi folks: Changed the oil today (60hp Mercury 4-stroke, built 2013, S/N 1C227585) and while poking around warming it up with the cowling off I noticed some water dribbling out of somewhere. Looked a little closer and it seems to be coming from the bottom of this big unit — excuse my ignorance...
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    Loose shifter handle, Merc 60hp

    Hello everyone - I don't post very often but can anyone tell me how to tighten up my shifter? Everything works fine, but the shifter handle is really loose. There are three large philis head screws on the assembly but I'm afraid to teake them out. One of them just spins. Thanks, Chris
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    Need impeller kit for an antique......

    My ancient 6hp Merc needs a new impeller, but I fear it's so old I may be SOL.... iBoats store only covers S/N 2529894 and up, whereas my S/N is 1752046..... circa early 60's I think. Ideas?
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    How much water should I expect in my bilge? Brand new 16 Rebel XL

    Brand new boat, always stored on a lift out of the water, have maybe 20 hours on it now. Always covered with very tight fitting Lund cover. Have had a few good rainstorms. I always seem to have about a cup of water in there whenever I look - not enough for the bilge pump to suck up. Where is...
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    Brand new 60hp Merc 4-stroke -- getting ready for first oil change..25W-40 or 25W-50?

    Manual says for synthetic to use Quicksilver 25W-40. Went to a dealer and he sold me Quicksilver 25W-50 b/c that's all he had. Will there be any difference? Should I use it or look for the -40?? The web page states -40 is "recommended", while -50 is "acceptable". The -50 seems to be used...
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    Brand new 60hp Merc 4-stroke -- getting ready for first oil change..24W-40 or 25W-50?

    Manual says for synthetic to use Quicksilver 25W-40. Went to a dealer and he sold me Quicksilver 25W-50 b/c that's all he had. Will there be any difference? Should I use it or look for the -40?? The web page states -40 is "recommended", while -50 is "acceptable". The -50 seems to be used...
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    Brand new 60hp 4stroke EFI - weird noise question...

    Picked up my brand new LUND 1650 Rebel XL with 60hp Merc and observed break-in procedure for the first two hours as per the manual. If I throttle back quickly from WOT, I hear a loud clicking noise - the same sound you hear when shifting into forward or reverse from neutral. I don't get this...
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    Merc 90 late 80s vintage - prop seal advice

    Lower unit oil has water in it, so time to have a look. First time I've tried. See pix.... Is this O ring all that keeps water and oil apart???
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    I am getting 16-17V across my battery while running......

    ... I think this is way too much and I will end up cooking my battery, correct? Any clues as to what may be causing this? I have replaced my rectifier module, but still getting high voltage. What is normal? (I am using a digital voltmeter) Late '80s Merc 90, 3 cyl, oil injected.
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    What is the reccomended spark plug for my...

    ...Merc 90, 3-cyl, late '80s vintage, S/N 0B1744XX ?
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    Starting problems - Merc 90

    Hi folks: I wonder if someone can diagnose my problem..... I'm only getting about 8.5V on the cranking motor when I turn the engine over. Needless to say, with that low voltage, starting is a bit of a chore, but after quite a few grunts, she will actually fire up. still, it isn't right. When...
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    (re)-starting problem...

    So here we were last weekend enjoying a nice little outing on the lake, when we stopped for a rest and to enjoy some scenery. Went to re-start, and ppffft... naada. Lights still OK, bilge pump ok, but trim and motor dead. as if there was no power anywhere at all. Got a hitch with some...
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    I'm getting 17.5V across my battery.... (Merc 90, circa 1988)

    I decided to install a Voltmeter (digital) in my boat. At rest I am reading 13V or so, but in cruise I am getting 17.5V (all throttle settings). This seems way too high to me..... am I cooking my battery? What is the cause? (I know zip about the charging system and how it works) Thanx in advance.
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    Merc 90 Wiring... where to find?

    Folks, while I am diagnosing my other little problem, where can I get a wiring diagram of my motor? I do have two decent manuals already (Seloc and Merc) but they only show ignition wiring and I need to see the alarm wiring.
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    Electrical Question (Merc 90)

    Ever since I've owned this motor, this has bugged me..... there are two wires which someone has cut. They start at a terminal block on the right side of tthe motor and there are a number of other wires coming off the same point. Also, my overheat and oil level alarms have never worked. Could...
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    Merc 90 Cooling Question

    Hi Folks: Late '80s Merc 90, oil injected. My water flow starts right from the get-go..... does this mean my thermostat is stuck open, or is this normal? If it isn't normal, typically how long does it take for water to flow from a cold start?
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    Water Pump Kit Question - (Merc 90)

    Hi folks: First time attempting to replace the impeller in my Merc 90. I bought the kit from Quicksilver and watched the various videos on You Tub, etc so I hav a reasonable understanding of what I'm getting into. I understand the two gaskets and the faceplate and the keyway, etc but what are...
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