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  1. C

    Regular fuel

    We do like our snake oil....
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    J150EXECD No spark w/ regulator connected

    The service manual for that motor does not mention that subject. I would put an ohmmeter on both wires of the VR and see if it is shorted to ground. Unplug the VR first. Both the grey and purple wires go to other components, and you want to prove the VR is the issue. Try a hand impact...
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    Mariner controller

    What you need should not be hard to find. Get on a Mercury site and find the control for your exact motor. Match year and HP. Mariner and Mercury should be the same, except for paint. Then you can search for aftermarket controllers based on the OEM control part number. The key item is the...
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    Control lever removal?

    That does not look like a control from '88. Looks like one from '74 or earlier, and heavily used in salt water. Put a hand impact driver on that screw in the center of the handle base and see if it will come off. You might price out a new control, just to be ready. Obviously pick one for the...
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    1150 Link & Sync Question

    Some tachs will show the RPM when the engine was turned off. They usually zero when power is applied. If you remove the cowling and pull off the telltale hose on the water jacket cover, the water should stream out of the engine at max volume for the elbow. If not, you have water pump issues.
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    1974 mercury 2 stroke water pump operation?

    An overheat horn might work. A water temp gauge doesn't work on that motor, because it runs dead cold at idle and warmer as you accelerate. Not sure what effects your climate has on the impeller. We change 'em every few years here in NJ.
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    Power Outlet stopped working

    Almost every boat has a fuse panel. They are usually under the dashboard. I presume your boat has lights and a bilge pump? Trace one of those wires back from the lights and see where it goes after it passes thru the switch. Some boats have circuit breakers directly above the switches. These...
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    Heavy Torque on start up

    Harry, I do not understand the question. If she doesn't pull at speed, there is no need to adjust the anode. If she pulls during acceleration, trim up a bit.
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    Questions on recent purchase of Mercury OB

    That motor will run about 50::1 gas to oil. So if it is a quart, it will last for 12 gallons of gasoline or a bit more. Those oil reservoirs usually have a level sensor to tell you when they get low. Just get a service manual for that motor. Much better than an owners manual and will; have...
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    Please help 1975 mercury 200 20hp

    Some Mercs have a bolt hidden under the zinc anode.
  11. C

    Small hole in hull.

    Make sure the area is clean, usually by sanding it. Wipe with acetone. Marine tex or even polyester marine putty will work fine.
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    How much trim?

    You can trim a lot if motor stays at idle. Basically as long as prop and water intakes are covered. At higher speed the outdrive must be more vertical, within the brackets of the outdrive, or the universal joints will start to fail.
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    Please help 1975 mercury 200 20hp

    Any marine gear oil for mechanical shift outboards is fine.
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    1985 evinrude 30 hp prop power issue

    Possibly, if the hub was real bad. You can make match marks on the brass hub and the blade, run it in gear in the water and see if they move in relation to one another.
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    Broken leaf spring

    Sounds like a manufacturing defect. Leaf springs have been around since before the model T. On boat trailers in salt water they rust pretty quickly, but usually give visual warning before they fail. Of course, you do need to look 'em over...
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    Mercury remote 881170A15

    This is what you need, it has the relays which are $20 ea. I expect it to be quite common, as this was the first item on a gross search...
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    Kenwood radio interference issue

    There must be some sort of grounded shielding you can encase the signal wire in. I would have thought Kenwood would have thought of that, if their signal is so weak. Your motor is quite far away to interfere, IMO. What about the tachometer signal? That might interfere as well because is it...
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    1985 evinrude 30 hp prop power issue

    Prop hubs can give out. These connect the blades to the brass hub. If the motor revs up and the boat doesn't, those are often the issue. Prop shops can fix 'em.
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    Kenwood radio interference issue

    Your motor uses power from the ign key to produce spark. You might see if that purple wire is close to your remote wire. That is another source of potential interference. Try turning on the ign and not starting the engine. If the remote doesn't work, it might be for that reason.
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    Mercury remote 881170A15

    Well, you need relays and a new wiring harness for that PTT motor to work with your engine. A lot of 2 wire PTT motors come with those as a kit. Solenoids provide power to the PTT motor when energized, and are open when not energized. Relays provide power to the PTT motor when energized, and...
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