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    1993 Mercruiser 350 Ski Magnum carbed oil type

    Scott, Is your engine made by Michigan Motors? Now my knowledge is dated, but my MerCruiser called for SAE-30 or SAE-40 or the Quicksilver 25W-40. I have seen newer four cycle marine motors that specified an FC-W oil, but never diesel motor oil. Run what you want, but please update us on the...
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    Mercruiser 3.0 started twice perfectly overfilled the gas now won't start

    Gee, and fix the deck near the fuel tank.
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    Mercruiser 3.0 started twice perfectly overfilled the gas now won't start

    Sure, just like those 60's cars needed to clear a flooded engine. Use the screwdriver to prop the choke open. Set the throttle to full in neutral. Crank it until she fires, and then pull back on the throttle quickly to stop her from high RPM.
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    Mercury 80 hp portable fuel tank

    As was said. 2 cycle oil mixes very well with gasoline, especially in a portable tank. The 2 cycle OB OEMs recommend you put 1 gal of gasoline into a portable tank and then add the oil. Now shake the tank to mix it. Now fill the tank.
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    85 Cobia sportster Mercruiser 120 steering issue

    Grease the steering rod near the engine. Now exercise the steering and see if it improves.
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    1993 Mercruiser 350 Ski Magnum carbed oil type

    Automotive multivis oil is not recommended for sterndrive or OB boats. It does not have the warm viscosity to protect the engine under the high loads of water cooled, 4 cycle, marine engines. I do not know if the diesel oils protect or not. Now I have never run auto oil in my sterndrive, and...
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    Fuel for older Evinrude/ Johnson

    Gee, I have had no issue with my carbs in the last 20 years. I think it is because the e10 keeps the carbs and fuel system clean. I run a stabilizer in the fall and leave the carbs full over the winter. In the spring, she starts right up and runs perfectly.
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    1993 Mercruiser 350 Ski Magnum carbed oil type

    Gee, what kind of oil is specified for your motor? I will bet it is FC-W oil. FC-W oil is specifically designed for sterndrive and 4 cycle OB motors. Why not use that?
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    Bildge pump removal

    A lot of those pumps have screens under the pump body. Under the screens, which are not fastened, are 2 - 4 screws.
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    Mercury 80 HP outboard

    The correct way is to set the carbs to 1-1/2 open, and run it on the water. Make sure the mixture is exactly 50::1 and tune the carb idle mixture to run as best as possible while allowing smooth acceleration.
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    Mercury 80 HP outboard

    I will assume that is a Merc from the late 70s or early 80s. They really liked a precise 50::1 gas::oil mix. When tuned properly, they will idle OK on that. However, it does not take much in tuning or fuel mix to make a lousy idle. My advice is to mix a fresh 50::1 fuel source and run it on...
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    1992 Mariner 200 EFI, lost power

    Check your fuel for water or other contaminate. drain the carbs and see what is there. Water is likely. If that doesn't get it, check spark on all 6.
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    Mercury 80 HP outboard

    No, the difference is backpressure on the exhaust. In the driveway there is no backpressure. In the water there is some backpressure. What is your idle speed? Have you made any changes or repairs to timing or carbs?
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    Mercury 80 hp portable fuel tank

    Doubtful. 2 cycle oil mixes very easily with gasoline, especially in portable fuel tanks.
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    Spark plugs for a Merc outboard

    I once compared the BUHW and BUHW-2 spark plugs. The BUHW-2 had a slightly thicker ring electrode. That seemed to be the only difference. I do not think it makes a large difference, because my '73 850 and my '77 1500 shared ign systems, pistons, carbs and a whole lot of other parts, yet the...
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    Slip/moored boat what do you do with your trailer?

    Gee, it depends on the HOA. Lean it upright against a fence, comes to mind.
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    Spark plug location on coils

    Usually the top coil goes to top cylinder... Maxrules likely has a wiring diagram for your motor. Compare the colors of the wires to the coils with the diagram and make sure they match. Also, compare the wire colors on the switchbox to the diagram to make sure no one got creative.
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    97 Merc 200 carb, slow to plane out and no top end

    Reeds were stainless steel? If timing is good, and spark on all cylinders, carbs are next possibility.
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    Will a 2001 elpt 90hp lower work on a 2005 90hp elpto?

    SEI Engineering make replacement gearcases for OBs. Their application data may give you the answer.
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    Muriatic acid on stripped outdrive. Is it safe?

    Acetone is fine to clean the surface. Paint thinner is OK as well. use a self-etching primer. Rattle can gloss black is fine.
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