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    1993 Mercruiser 350 Ski Magnum carbed oil type

    Scott, I am simply wondering aloud why people do not run the oil specified for their motors. It seems pretty easy to me.
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    1973 Merc 75 Impeller Pickup Tube

    Is that a 7.5HP motor?
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    The internet has no actual information about common boats? 2003 Tempest 165. Google ONLY lists for sale ads.

    Try KBB
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    Mercury 80 hp portable fuel tank

    You realize that 100::1 was un recommended some years ago, right?
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    1993 Mercruiser 350 Ski Magnum carbed oil type

    OK, I am frustrated. Why is it that you cannot use what the OEM recommended? Is it cost? Is it genital size? Is it some version of "they don't want you to know"? Just wondering?
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    Sea Pro 195 F/S fuel tank size

    Pull up any hatches and see if the fuel level sender is there. Look for a tag on the tank. If that doesn't get it, you may need to look under the console. Alternatively, drain it into Jerry cans. Figure it to be about 40Gal.
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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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