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    Transom gap?

    I think you should fill the gap. If you tighten the transom bracket, with a gap in it, the pressure of the bolts could break the transom bracket. The same with a collision, the uneven pressure on the transom bracket could break it.
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    1984 Mercury inline 6 115 hp outboard - power head removal

    There is no gasket between the gearcase and midsection. The crowleymarine website may give you a hint where the PTT solenoids go.
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    Boat seating

    Captain-type chairs are pretty available, and for a wide ranges of prices. I would not think you will have any issue finding something you like. There are sales on them in the spring, or over the winter.
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    90 HP early 80's 6 cylinder starting without key

    Gee, you might have mentioned the water in the boat. Motors run really bad on a water/gasoline/oil mix.
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    4.3 Mercruiser with only 3 water drain holes.

    V engine blocks almost always have a drain on each bank of cylinders. Your 4.3V6 should have a drain under each exhaust manifold.
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    polypropylene fuel tank question?

    I have not had good luck with silicone. The Permatex that GA showed is what I used. Thanks GA!
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    Question about 850 mercury thunderbolt

    What year is that motor? Early 70s models have battery powered CDI. Later models have ADI ignition. You will not see voltage at the coli(s), on those models, until the trigger "fires" them. A regular voltmeter will likely be too slow to record that voltage.
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    polypropylene fuel tank question?

    Permatex makes a product that is not soluble in gasoline or water. Autozone carries it. Smear it on both sides of the gasket and tighten the screws as best as you can. You are using a gasket, right?
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    Mercury 150 serial number?

    most gearcases from 135/150 HP V6 motors should fit that motor. BTW the powerhead looks like my 1993 135V6. It has a gearcase from a 1988 150HPV6 on it.
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    1976 Merc 65HP - Filter Inlet Cover help needed

    Epoxy glue would be your best bet. Sand it lightly and clean it with acetone, then apply the epoxy.
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    IDLE Adjustment

    Mercs in good condition do that all the time, when they are out of tune. However, it doesn't mean your motor is in good condition. try some fresh 50::1 fuel mixture. If that doesn't get it, you will need to clean the carbs and rebuild them with new floats, gaskets and inlet needles and seats...
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    1995 150 Johnson Bogging down

    That motor likely has a water cooled voltage rectifier. They are pretty reliable. I would check the wiring to the tachometer and other gauges for dirt and corrosion. Chine walking is much more difficult to analyse. Hull could be pushed past design speed. Is boat HP higher than max rated...
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    1995 150 Johnson Bogging down

    Check your carb linkage.
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    Paint over antifouling paint

    Antifouling paint cannot be painted over with anything but more antifouling paint. If you want to apply an enamel or polyurethane, the antifouling paint must be completely removed.
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    90 HP early 80's 6 cylinder starting without key

    Have you checked your fuel pump? If the diagram has a leak, it sill allow raw fuel into the crankcase. This causes cylinders to miss at low speed, but run at high speed. As for overcharge of the battery, the charging system is at best 9Amps. It should not seriously overcharge the battery...
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    1977 Mercury 150 Inline 6 fuel problem

    You will want to make sure the link and synch are done properly, or you could damage your motor. Do you have a service manual? If not you might get one. A OEM service manual is vastly superior to an aftermarket one. Remember, the idle pickup timing is adjusted using the brass collar which is...
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    Johnson controls

    You could add a kill switch to the dashboard. It will be a lot cheaper.
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    90 HP early 80's 6 cylinder starting without key

    Generally an Inline 6 will not flood when cold. So that is strange. I also think it strange that 3 coils would go bad. Ground wire corrosion could cause weak starter and since starter spins slow, spark can be weak. Maybe check ground wires on the coils and switchboxes for corrosion. On...
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    Clinton 7.5hp fuel filter?

    Just try Sears Parts. They have replacement parts for obscure stuff, both Sears brand and other brands.. They might be able to fix you up.
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    Need a Bilge Heater

    I attached a 40W heating pad to the oil pan. The bay water never froze, but the air was below freezing quite a bit. Of course, I wanted the engine to stay warm, for those cold starts during Striper season.
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