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    All gauges went out. What to look for?

    Still look for a bad ground. The gauges may be grounding thru the nav lights circuit, and when you apply power, the ground is lost.
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    Bought a boat yesterday

    Fuel tank vent
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    charging help

    That motor and most others with charging systems are not made to be run with batteries disconnected. Disconnecting the battery will damage the new VRs you installed. I also do not know what effect it has on the EFI system. Why would you intentionally disconnect the batteries?
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    ACR with Inverter Question

    Gee, I think you are asking a different question now. Running mechanical devices at 100% capacity is likely not good for any of them. i.e. Run your car at 100% of power for an hour and see what happens. Are you really going to use 165Amps of power for an extended time? If so, you might get a...
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    Starting problem

    Your radio, depth finder and lights may be directly connected to the battery and may work w/o any power to the ign switch.. Your ign key is likely fused at the motor. Check that fuse first. Do your gauges work? They are usually powered by the ign key. If fuse is good and she doesn't crank...
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    ACR with Inverter Question

    OK, so if your car battery goes dead, and you jump the car to get her started. Would you not expect the alternator to charge at or near max? Now if the alternator is shorted to ground, the diodes in the voltage regulator will likely be damaged, but not the alternator windings.
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    1978 Lund Deep V Hull, bow raising up dangerously high

    Gee, a lot of weight in the stern is a relative term. What is the weight of the boat, say 150# or less? The motor is 60-80#, battery is 40# and fuel is 50#. So gas, fuel and motor likely outweigh the boat, hence the stern being a lot lower in the water, while it is moored. Move fuel and...
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    ACR with Inverter Question

    Gee, alternators charge max all the time w/o burning out. What makes you think your's will burn out?
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    Distributor harness 1976 mercury 115

    CDI Electronics has a test on their website that tests everything in the ign system, except the distributor trigger. You might run it so you know your wiring, coil and switchbox are good.
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    Add a kill switch, Johnson 50hp, 1996.

    This kind of ign switch came installed in the dashboard of my 1998 boat and 150HP Johnson outboard. The kill switch is built into it. 175974 5005801 Ignition Switch & Key Assembly with Safety Lanyard, Fits for OMC Johnson Evinrude 40-200HP Outboard Motor
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    Adding power tilt and trim to manual motor

    The PTT unit for that motor had the trim pump in the boat with 4 hydraulic hoses that went to and powered the two trim cylinders that bolt on the outside of the transom bracket. See parts diagrams. https://www.crowleymarine.com/mercury/oem-parts/outboard/1985/-1035625?mdl=SEHBTW I can tell...
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    Welding a pivoting Bow Stop?

    If the winch line is tight, the bow stop should not move very much. If it does, it is likely the trailer flexing. Is the trailer rated for the boat weight?
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    1978 Lund Deep V Hull, bow raising up dangerously high

    Gee, put the fuel tank in the bow. Consider moving the battery (if you have one) forward as well.
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    1978 Lund Deep V Hull, bow raising up dangerously high

    Trim the motor down as much as you can. That will help it plane faster with less bow rise. Try to determine if the wind affects the lift of the bow. I had a jon that the wind would lift and carry the bow.
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    Distributor harness 1976 mercury 115

    You do not need to remove the flywheel to get the distributor off. You may need to remove the outer flywheel to get a to the bolts, I cannot quite remember. I think it unbolts from the bottom. On that distributor, the rotor is non-removeable and fragile and $200+ to replace, so easy does it.
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    Rust, generally how to clean and best spray to keep it from rusting?

    The easy way to fix rust is to wire brush off the loose stuff and prime with Rusty Metal Primer. The better way is to wire brush and then sand off the rust. Prime and topcoat. As for the winch....if not too far gone, do as above.....otherwise replace it.
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    1984 mercury 150 blackmax timing/ link and sync procedure

    You probably want a 19" or 17" pitch prop for that boat. In theory, a 19" pitch prop would get you about 5300+ RPM. 17P would get 5700 RPM or maybe some more. Idle pickup timing is set when the carbs are closed, but about to open. 8* ATDC at that point is fine.
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    1984 mercury 150 blackmax timing/ link and sync procedure

    A 23P prop would only work on a light fast hull. Must boats have too much drag to allow full RPM. Is the motor, boat or prop new to you? What is it that you have? The prop hub is the right size for the motor, usually 4-3/8"? Have you checked the fuel pump. A black prop is unusual. Maybe...
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    1994 15 force by merc overheat?

    Replace the thermostat and recheck. FWIW, I thought your waterpump did not look good.
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    1994 15 force by merc overheat?

    OK, on a standard motor, the waterpump would be next to replace. On a related note, do you have a poppit valve on that motor?
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