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    50 hp high speed misfire

    Those statements were of a general nature about ether. The fire extinguisher statement was for you though. The common dry chemical fire extinguishers are real corrosive, so if you need to discharge one, clean up the chemical promptly or it will corrode the carb, the throttle plates and most...
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    50 hp high speed misfire

    Clymer and Seloc service manuals often have grossly inaccurate info in them. I would not use them, unless you are real familiar with the motor. BTW - whenever using ether, have a fire extinguisher nearby, as that stuff is real flammable. An engine may not have enough spark to run, but often...
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    snapped driveshaft Mercury 2011 150 Optimax

    Fazt, I guess I am naive, but I do not think the driveshaft should be made so close to power output tolerance that it would ever snap. It is a big dumb piece of SS. Make it a bit stronger and eliminate that issue,
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    Trophy 1703 motor choice

    Gee, why not run the Merc for a season and see how it goes. If you don't like it you can always switchover. 35HP is a lot to give up for snobbiness. The boat may wallow with the smaller motor.
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    COIL INFO

    Gee, sounds like youneed a service manual. A parts place like crowleymarine will give you an idea if coil and wire are one piece.
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    Gear case

    OK, see if SEI makes one. I know they make replacements for my '98 Johnny V6. Pay attention the the driveshaft length. My '98 has the 2 piece driveshaft, and the SEI replacement reuses the upper driveshaft.
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    Battery charger size needed

    We don't even get ice here at the Jersey shore anymore. I do need to wear two sweatshirts when it is really cold....so at least I have that. In 20 years I won't need to winterize the boats. Mostly because I will be dead.
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    Enrichner valve

    Put a voltmeter on the power wire to the enrichener, and see if you have +12VDC when the choke is pushed. If not => wiring issue. if so => enrichener solenoid is bad. You could also check the enrichener solenoid with an ohmmeter. I would expect a few ohms of resistance, if the solenoid is good.
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    Gear case

    What brand, year and HP motor? SEI may make a brand new gearcase, for the price of replacing those gears, bearings and dog.
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    how do i test tilt and trim motor on a volvo penta 4.3 gl sx with blue and green wires and no black earth thanks

    2 wire PTT motors use relays, not solenoids. Solenoids provide power when energized, and are open when not energized. Relays provide power when energized and provide ground, when not energized.
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    Battery charger size needed

    Gee, this is like an oil debate. I like the slow chargers for boat batteries. Slow is best, as my pappy taught me. The motor charging system keeps 'em charged when I use the boat. When I am a slacker, and don't use the boat, I slap a 3A charge on it for 24 hours, or 48 hours for a dual...
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    Water in the intake

    So freshwater cools the manifolds and raw water cools the risers? Is raw water salty? Probably the manifold is still good, if freshwater use. I would look at the risers, especially the joint between them. If any water goes past the gaskets on the manifold to riser joint, it can end up in...
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    1976 mercury 1150 115hp runs on muffs but not in lake

    if you can find enough wire to connect to, I would recommend you remove the plastic insulation from a crimp type butt splice, coat the wires and splice with flux and crimp and solder the splice. Next some shrink tube over the splice.
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    1976 mercury 1150 115hp runs on muffs but not in lake

    If you can find a way to solder a new wire on, that is the way. Replacements for the trigger and distributor body used to be avail for $200+. They were a drag to install, as you needed to pull the rotor shaft. See if CDI Electronics still sells them.
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    Battery charger size needed

    Two batteries? Figure on 5A each, for slow charging, which is the best kind. A 10A charger will normally taper the amperage as the batteries charge up, so you will not overcharge them. You can also get a smaller charger, if you can leave them on charge for a day or two.
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    1976 mercury 1150 115hp runs on muffs but not in lake

    Clearly it is time to check the timing. Remove the spark plugs and prop. Set the throttle to a position where the carbs are closed but ready to open. Crank motor with timing light on #1 cylinder. Timing s/b 4-6* BTDC. Carbs s/b open 1-1/2 turns.
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    No power from the top 2 cylinders

    Check your wiring. Check the trigger part number. A 6 cylinder would fire a cylinder at 180*, but your motor should not fire then.
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    Thru hull leak

    Fixing it from the outside would require that you can mimic the original mold for the hull, with it's smooth glass shape and strength from long glass fibers. Not an easy task. Rip the inside out....
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    Question about control cable and water separator for carbureted engine

    Proper water separators will not restrict fuel flow. They are rated at 20GPH and 40GPH. Your motor is at most 15GPH, and most of the time less. Do not let them get full of water, or water will find it's way to the engine. Ideally the control cables are 2' longer than the distance from...
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    No power from the top 2 cylinders

    The outer flywheel can be put on the wrong way. That means the magnets may be in the wrong position to produce spark. Loosen the 8 bolts and rotate the outer flywheel 180* and recheck with timing light.
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