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    Bow plowing at high speed.

    You should see a wave coming off the hull at least 3/4 of the way back from the bow. if not the bow is plowing water. Can you post a picture of the hull defects. A hook in the transom area will cause the issue. Trim the motor up and see if the bow lightens. If not, you may need to raise the...
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    Back to the same problem

    Adjust your throttle cable barrell nut to push the throttle closed. That will lower the idle speed. I would recommend a 21* BTDC max spark advance, if you plan to use regular grade gasoline.
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    1960 Johnson 75hp. Backfired; stripped head threads for plug

    Likely the second set of points was not set correctly. My fat fifty did that same thing. I was able to remove the crush washer and there was enough threads to hold the spark plug in. A solid steel spark plug insert is another option. You would simply need a new head gasket and the insert.
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    Merc 150,Where does this wire go?

    A lot of those V6 motors have both a temp sender for a gauge and an overheat sensor for a buzzer, one on each cylinder head. A lot of times only the overheat sensor is hooked up to a buzzer. The sender wire is either loose or on an unused terminal block. Try to trace it back. It should go to...
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    GPS speedo/tach?

    Does the application info for the unit specify your motor? Modrrn Outboard tachs usually run off the stator pulses. A cell phone will often have GPS speed on it. Speedo Pitots are cheap and easily replaceable.
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    Merc 150,Where does this wire go?

    Hard to tell from your picture. What color is the wire?
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    How to tell what carb I need?!?

    4 bbl carbs require 4 bbl manifolds. Unless you are willing to replace the manifold, you will need to stick with a 2 bbl carb.
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    Dead Evinrude?

    Obviously the throttle handle must be in neutral for the motor to crank. Try wiggling the throttle handle, while holding the key in the start position. Also, jumping gauges implies an intermittent or broken ign key switch.
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    Fuel tank capacity

    Capacity of your fuel tank is only one piece of missing info. I assume you want to know the range of the boat as well. Can you pull up a deck panel to expose the top of the tank? The size of the tank is usually stamped onto it. if not you could measure it and find the volume. Alternatively...
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    static timing

    Is the outer flywheel in the correct position on the flywheel hub? If not, rotate the motor until the top cylinder is at TDC. Now set the flywheel so the timing decal faces where the timing pointer would bolt on. Get or make a new timing pointer. A flat piece of metal or plastic works. Now...
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    1997 Johnson 150 VRO oiling system

    If that motor has the 4 wire OMS pump (likely), a new one will be plug and play with your wiring and plumbing.
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    1960 johnson 75hp V4S-12 starter

    A starter shop (if they exist anymore) might rebuild it for you.
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    Specific cushion restoration question related to rusty staples

    They are underneath the cushion and out of sight, right? Just remove what you can with a needlenose plier and restaple with monel or SS staples. The steel will simply rust away and usually not bother anything.
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    Need guidance on 30 Year old Fuel Tank

    Tiempo and others make a pretty good selection of standard fuel tanks. See if you can get one close to the original size. Stock tanks will be much less $$ than custom.
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    1997 Johnson 150 VRO oiling system

    I have the original OMS pump on my '98 Johnny 150HPV6. It works fine. Hope I don't jinx myself.
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    No Fuel Pressure

    You might repost this in the Mercruiser forum. You will get good advice from those guys and gals...
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    2000 115 johnson ocean pro battery connections

    What did the dealer do, keep all the components for the new motor, that they needed, like battery cables, oil tank and some wiring?
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    2001 225 optimax won't start

    You might post questions about Mercury Optimax in the Mercury OB forum.
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    Need guidance on 30 Year old Fuel Tank

    Yes, that is why I recommended you visually inspect the bottom aft of the tank. If the pitting is almost, but not quite thru the tank, it will pass visual inspection from the inside and pressure test, and then leak next spring.
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    Need guidance on 30 Year old Fuel Tank

    Aluminum tanks tend to develop pinhole leaks on the bottom, lowest corner, usually the stern side. That is likely where your damage will be. Can you get the tank out to inspect the condition of the aluminum?
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