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  1. C

    Any saving the engine? I’m devastated

    You are lucky it is fresh water. Drain the carbs, Oil the cylinders, hook up some fresh fuel and run her for 45 minutes to dry it out. Saltwater would require a tear down.
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    Torque values

    There is certainly a torque sequence and value. It sounds like you need an accurate service manual. See if marineengine has one for you. Why are you replacing the reeds?
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    1965 Johnson 6hp spark plugs

    They are a bit too hot for that motor. Since the motor is water cooled, it will probably (probably) be fine, but you should inspect the spark plugs for a greenish tint. If you see it, the motor is likely overheating, at least in the combustion chamber. For $5 you can put the factory...
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    Motor turning to the left

    It is normal for motors with right hand props to pull to the right. There should be a small fin above and behind the prop that is adjustable. Turn it CCW to lessen or remove the pull to the right.
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    One Stringer or Engine Block is slightly compromised Question

    Gee, you have the engine out now. This is the time to make all repairs, or you will be too lazy over the winter to pull the engine again, no?
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    No feedback helm question

    So the cable has the play? Some R&P systems had an adjustment screw Other than that, I am not sure.
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    1977 merc 150 outboard bogs at WOT

    I would think a 17 or 18P prop wpuld work, if the boat weighs what a 17 footer should. I ran that motor on my 16' speedboat with a 21P prop and could get 60+MPH. The hull is pretty flat bottomed.
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    No feedback helm question

    That sounds like a lot of play. I presume you are discussing a cable NFB system. See where the play originates. It could be the motor mounts or some parts of the steering system.
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    1979 70 hp choke issues

    I have no idea. Why would you want to find out? Maybe a new engine harness is in order for you. I have not looked specifically for your engine, but aftermarket Merc Engine harnesses are available at several places on the web.
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    1979 70 hp choke issues

    I would not worry about the mercury switch. It is only there to kill the engine, if it is kicked up when you hit something. Someone may have tossed it, thinking (and maybe it was) bad. Obviously trigger wires should be connected properly, if you want the motor to run properly. The carbs...
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    1992 XR6 150

    Pipe wrench on tube, or just unbolt the front steering tube from the transom clamp. I use a single cable on my Speedboat with a V6.
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    1977 merc 150 outboard bogs at WOT

    Pump the primer bulb while at full throttle. If it stays at high speed, rebuild the fuel pump. The fuel pumps on those are really taxed at WOT, so make sure the valves, diaphragm and pulse hoses are good, and the screen is clean. The pulse hoses have springs inside them to keep them from...
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    Switch box testing

    How about this? https://www.cdielectronics.com/wp-content/uploads/sp_uploads/controlled%20documents/installation%20sheets/is-114-7778.pdf#:~:text=Connect%20a%20Digital%20Multi%20Meter%20to%20the%20Ignition,one%20or%20both%20harnesses%20and%2For%20the%20Ignition%20switch.
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    1965 Johnson 6hp spark plugs

    Can you not get J4C? They used to be readily available. Advanced auto parts stocks them, but I would think amazon does as well.
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    OK for the spark plug gap to be slightly off from recommended?

    Gee, I used L-78V plugs in my '73 Merc 850. They are not new..... It looked like they had a slightly wider ground ring around the center electrode, compared to the BUHW or L-76V plugs.
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    Switch box testing

    All the IL6 motors with ADI ignition have 2 switchboxes. Try the CDI electronics web site. They used to have a switchbox test. In addition to the 2 switchboxes, your motor has 3 triggers, and two stator charge coils, one for low speed and the other for high speed operation. What cylinders...
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    1992 XR6 150

    Gee, push it with a finger towards the front or back, I forget which way. It just clips on the bottom and pivots on top. It doesn't seem secure, but it is.
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    OK for the spark plug gap to be slightly off from recommended?

    As was said, surface gap plugs last a real long time. I have a set that I bought new 2 years ago. The ones in the motor are fine, so the new ones sit expectantly on the shelf. Actually, I only change them when the shells get rusty. I have never had one wear out.
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    OK for the spark plug gap to be slightly off from recommended?

    Mark, do you have a listing for a conventional plug for a 1986 motor? I never saw one. Merc did specify conventional plugs for newer motors, however.
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    OK for the spark plug gap to be slightly off from recommended?

    I do not think Mercury ever specified a conventional spark plug to replace a surface gap one, in your motor. I would stick with the surface gap plug. They look to be avail in lots of places.
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