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    New at this need help

    Sometimes the number of the ign key that fits the lock is printed on the ign switch. 128 does not seem to have enough characters to be a part number.
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    ‘97 Johnson 150 Ocean Runner - Draining battery

    I would think the voltage regulator is the main suspect, provided the wiring is in good shape.
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    Poppet Valve Kit for 85 Mercury Black Max 150 hp V6

    Telltale should be warm at idle and other speeds. 143* or 147* makes no difference. If you can keep your hand under it, is fine.
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    Stock plug for Evinrude 50

    I unfortunately used the two terms interchangeably, which is likely a mistake. I do not know the precise difference, but I believe the Q suppressor is the right spark plug, for the OIS (optical Ignition System, that I assume you have. Resistor plugs were first used to help stop radio...
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    Poppet Valve Kit for 85 Mercury Black Max 150 hp V6

    A Merc V6 engine should never overheat at idle, if the thermostats are working properly and the waterpump impeller is good. At idle the poppit should be closed, and therefore not part of the cooling system. Mercury water pump impellers will not pump well at idle if the bottom of the impeller...
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    New at this need help

    I will assume you have one of the old MerControls that came with the motor. Those had a separate choke button, and a 5 post ign keyswitch. Newer keyswitches have a 6 post ign switch, with the new post being the choke. If you want to reuse the original control, you need to make sure you get an...
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    Stock plug for Evinrude 50

    I did not find that engine model number, however, an E50ELDE takes a Champion QL78YC, which is a Q resistor spark plug, and is pretty standard for that year and make. The way I understand it, using something other than a Q suppressor plug can impact the function of the ign system.
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    Freshwater Boat to Saltwater

    Use a good multi season ablative antifouling paint on the fiberglass. Boats can still have wax on their hulls after several years of use, so a primer for the A-F paint is a good idea. Big chunks of paint fall off on those boats that still had wax on the hull and were not primed. On a related...
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    Battery Isolator question:

    You should research a wiring diagram for a system like yours. I expect it to be common, and you can see if your system is wired correctly. A 3 bank Isolator should charge 3 batteries, or 3 sets of batteries. Any batteries that share a charging bank, will tend to equalize in charge and load...
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    Poppet Valve Kit for 85 Mercury Black Max 150 hp V6

    I doubt the thermostats are accurate to 4*, so you are fine.
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    New at this need help

    Go on the maxrules website to find a common wiring diagram for your motor. The 4 cylinder 50HP Merc was a real popular motor, so it was made for a long time. Try to find a wiring schematic close the year of your motor, as the wiring colors probably changed over the years your motor was made...
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    Cruelty

    How about using an open end wrench on that spark plug? A whole bunch of Merc IL engines need you to use an open end wrench on their lowest spark plug.
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    Reenforce glass hull under the waterline? - 1967 StarCraft

    It doesn't look like the stringers follow the contour of the hull. They look much flatter. Is there something under the stringer layer? Maybe there is foam under the fiberglass over the stringers? BTW - that is a lot more stringers than most boats have. It should be good and strong.
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    Upholstery Question 1

    My old SeaRay used tee nuts. My newer SeaSwirl uses garelick clips. If you can reach behind the cushion, check for 1/4-2 bolts that go thru the fiberglass and screw into the tee nuts in the plywood of the cushion. Alternatively, lift straight up on a cushion to unhook it from the garelick clip.
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    1987 v200 black max wont go over 2000rpm

    Stator has both high speed and low speed windings. 2000RPM is about where they transition. Hopefully the new stator will fix it. Merc "bands" matching stator wires together so you cannot (or hopefully cannot) install the stator wires incorrectly.
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    Overheating at idle, cool as a cucumber at speed

    Gee, the crowleymarine site will have diagrams showing your thermostat and poppit valve.
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    Wiring harness schematic for a TJ40ELETB.

    On a '93, the engine wiring harness colors will be standard. Red is +12VDC, purple is ignition power, black is ground, black/yellow is ign killer wire, grey is tachometer signal, yellow/red is starter solenoid, yellow/black is choke, tan is overheat. If you have warnings for the oil injection...
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    115 Johnson v4 2000 trouble staying started oil/gas leak from exhaust

    Running 50::1 gasoline to 2 cycle oil will run that motor fine.... Most of the OMS pumps fail on the oil side, I am told. If that happens, the fuel side will pump the 50::1 just fine. If not, you need something else to pump the fuel.
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    1997 Mariner 115hp where to set the tach dial

    12p or 6C... I think that is right. You will know when you start her up. It should read 850 - 1050 at idle.
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    1990 90HP Pontoon, 4300 RPM at WOT, Do I need a new prop?

    On a totally unrelated subject. I live on the Barnegat Bay. The good news is that I have the entire Atlantic ocean to work with. We have salt water and big fish, clams, oysters, rough water, tides and the like. Of course the salt takes a toll on the machinery. However, I prefer living on...
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