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    Steering cable help

    I could not get your file to play. Are you saying the tilt tube is spinning when you try to disconnect the steering cable nut? You can hold the tilt tube from spinning with a jam nut on the port side or a pipe wrench on the tilt tube. Of course, a pipe wrench will tear up the threads, such...
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    Will gauge lighting work off SPDT switch?

    Common Navigation lights are wired so you can turn on just the anchor (or stern light) when at anchor at night, or when underway, turn on the bow and stern lights. I am not sure how to wire a SPDT switch to do that without a diode. A DPDT switch would work.
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    Outboard to work on minimum throttle

    His question was too vague for your answer, however, you did give an answer, so that is something. You told him to pick any small 4 cycle OB motor. It might even work. of course, if you prop it correctly, it has a better chance. A trolling plate will reduce the trolling speed, as will...
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    1996 Johnson gearcase

    SEI likely makes an entire new replacement gearcase for your motor. I have heard good stuff about these. You might check it out.
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    Outboard to work on minimum throttle

    How do you know that any of the newer 4 stroke motors will do what he wants? He wants to go slow. How slow is slow? Not sure of the basis of your recommendation. I agree that small 4 cycle motors idle well, but is it slow enough for him? Who knows..... Isn't idle speed dependent on prop...
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    Outboard to work on minimum throttle

    They also have flip up trolling plates, that bolt to the engine. When down, they slow the boat for trolling. When up, the motor will achieve top speed.
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    very cool carb and intake manifold causing moisture

    Flash, did you ever examine the "stove" on an old carb car? They run a bit of vacuum thru the automatic choke housing, via a small hole drilled thru the carb body into the throat.. A piece of thin pipe (say 4" long) wrapped in asbestos runs from the choke housing to the exhaust manifold. The...
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    Tach

    I do not believe batteries can pull enough power to damage the diodes. The diodes restrict current. Most every AC battery charger has diodes and people use them to charge bad batteries all the time. However, disconnecting the battery from the diodes will definitely damage them.
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    Wiring a water temp gauge.

    Ditto
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    Tower of power missing lever for gas bowl

    They are not sold separately, at least for my old tower of power. You can get a carb repair kit for $60. The repair kit covers 52 models, but you should make sure it covers your model. https://www.crowleymarine.com/mercury/products/51091-repair-kit-carb
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    Outboard to work on minimum throttle

    What are you trying to achieve? Slow trolling speed?
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    very cool carb and intake manifold causing moisture

    FR, the "stove" in old carb motors was to heat up the automatic choke, and cause it to open when the exhaust manifold (and engine) were warm. It was not designed to prevent icing of the carb. Icing of the carb is only an issue on airplanes., and then only at altitude It does not affect boats.
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    What to do with old 2 stroke mix

    Carefully use it to start a campfire. I normally use kerosene and 2 cycle oil, since K is less explosive.
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    1998 Evinrude ocean pro 200

    Power to the ign keyswitch powers trim gauges, fuel gauges, and anything else someone has hooked up. I powered stereos, lights etc, at one time in my boating career.
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    1976 Merc 20hp power loss, high fuel consumption, one plug clean one black

    OK, so fuel pump in the carb. I never worked on one myself, but most 2 cycle fuel pumps work the same way. A leaking diaphragm allows fuel from the fuel line to get into the crankcase, where it slouches around and can foul a spark plug. I would think any 1/4" inline filter would work.
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    1976 Merc 20hp power loss, high fuel consumption, one plug clean one black

    Your fuel pump is powered by crankcase pulses. If the diaphragm has a hole, raw fuel can leak into the crankcase flooding the lower cylinders. Rebuild kits are cheap and easy to install.
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    1998 Evinrude ocean pro 200

    My '98 Johnny 150HPV6 uses a 20A fuse. I would expect your motor to use the same. It also sounds like you have a short somewhere. Look for melted wires where the boat harness plugs into the engine harness, and under the dashboard where wires power the trim gauge and tachometer. If not...
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    Painting my 1989 Bayliner, Need some advice

    A one part polyurethane paint is not recommended for below the waterline use. The paint will likely fail a few days into water immersion. Imron and Alwgrip are the two part polyurethanes that yachts use. Both are expensive and are recommended for pro use only. Epoxy paint does not give the...
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    1978 Mercury 140 low compression

    It is very unlikely that the cylinders are all at 68-70 PSI. It is more likely your compression gauge is bad. If the cylinders have the same compression (within 15%) the motor is good. I would check the link and synch. That motor should be a distributor model with battery powered CDI...
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    Mariner 40 bottom carb fuel leak from Throttle Plate Rod

    Make sure your inlet needle is sealing when the carb bowl is full. If the carb bowl overflows, it often leaks there.
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