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    Transom replacement or design flaw?

    I have a 12 ft Starcraft, model sl-12 aluminum boat. It has a 5hp four stroke outboard on it. I notice that the transom on it flexes when I get past about 1/2 throttle. Enough that I don't go much more than that. I thought the transom wood was shot. But, as I've started removing screws, and what...
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    91 Mercury 100 won't run past about 1800 rpm

    The motor is a 91 Mercury 100hp 2 stroke outboard. I took the boat out this morning and it was running well. It would start and go through the whole rpm range no problem. I brought it to idle for a minute then when I throttled up it would get to about 1800 RPM or so and stumble, run rough and...
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    Seeking marine gauge recommendations

    I have a 16 ft Bluewater that has mis-matched speedometer and tachometer gauges. The tachometer is connected and working fine, the speedometer has never been hooked up. The speedometer I currently have requires a pick up mounted on the transom. I would like to skip that and get a gps speedometer...
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    Specific paint for outboard motor?

    I have a Mercury 100hp outboard that I will be repainting in the spring, everything except the prop and transom mount. The plan is to strip all the original graphics off, sand, repaint and put new oem graphics back on it. I have had good results using Rustoleum2X on other projects and had...
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    Water connection question. Nissan 5hp

    I have this water connection on a 2005 Nissan 5hp I recently bought. When I go to run the motor at home, can I connect the garden hose to this and skip putting the motor in a garbage can full of water? I have never seen this on another outboard motor. I have run the motor a few times at home and...
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    Mistakenly ran old fuel in Nissan 5hp outboard

    I mistakenly ran some old fuel in my Nissan 5hp four stroke. I am fairly mechanically inclined and am wondering if I can clean the carb myself? I'm also wondering if I will need to clean the fuel pump as well?
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    Nissan 5hp water pump question

    I just bought a 5hp Nissan outboard and test ran it today in a barrel of water. The engine fired up and ran great but I noticed that the water that runs through the engine was coming out in drips rather than a stream. As I increased the rpm the water came out in faster drips but never a stream...
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    Custom outboard setup, have some engineering questions

    A while ago I put together a 68 Evinrude 6hp outboard motor leg with a briggs and stratton 6.5hp pressure washer engine. In the pictures you will see the adapter plate I made to attach the two. On the engine side I used nylon lock nuts on the bolts to hold the engine in place. I was out on the...
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    1968 Evinrude 6hp Steering Tension Adjustment?

    Does anybody know how to adjust the steering tension on a 6hp Evinrude tiller outboard?
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    Relief hole in underwater exhaust pipe?

    I have an Evinrude outboard with a Briggs and Stratton power head that has exhaust tubing that runs from the engine to below the water line (when mounted on the boat). I have not water tested the motor with this exhaust system. I have read conflicting information online regarding needing a...
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    Looking for help with custom fuel system

    I have an outboard that I put together out of a 68 Evinrude 6hp lower unit and a 6.5hp Briggs and Stratton power head. I am in the process of setting up the fuel system for it and need some advice. The first picture is not my setup but is very similar to what I want. What I would like to do is...
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    Help identifying shift rod seal and fill plug seals for Evinrude 6hp

    I want to replace the shift rod seal on my 68 Evinrude 6hp as well as the two fill screw seals for the lower unit. I have looked up my engine via the serial number here on iboats and came up with this page: https://www.iboats.com/shop/engine-parts/1968-Evinrude-6802R-Gear-Case-Parts.html I am...
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    Where to purchase a longer trailer tongue?

    I have a trailer that has always been a bit short for my 10ft boat and am curious for those who have done it, where did you buy a longer galvanized trailer tongue from? Edit: The tongue on my trailer is 3"x3"
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    1968 Evinrude 6hp lower unit gear ratio?

    Does anybody know the lower unit gear ratio for a 1968 Evinrude 6hp? I found the service manual online but unfortunately it does not tell.
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    Evinrude 6hp converted to Briggs power head gas cap question

    I have an Evinrude outboard converted to a Briggs and Stratton 6.5hp power head. The gas cap on the briggs is vented so every time I fill the tank with fuel I cannot tilt the motor up without gas spilling out of the cap. Short of using an in-boat tank setup, what are my options? Can I use a non...
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    Leaking hydraulic seal on Mercury 100hp outboard

    I have a leaking seal on the power tilt for my 91 Mercury 100hp outboard. The motor still goes up and down no problem and I do not have a puddle of fluid on the ground but I would like to fix this leak anyways. Can somebody tell me what this seal is called and how to replace it? I googled around...
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    1968 Evinrude 6hp hole in cavitation plate and oil fill screw gaskets question

    I have a 1968 Evinrude 6hp outboard that I have converted to a pressure washer power head. I fired it up on the stand the other day and was getting oil leaking from the lower unit from a hole on the bottom of the cavitation plate. I am not very experienced with outboards and am hoping you all...
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    1991 Mercury 100 Outboard-key left on and now no start

    Hi all, I left the key on for several days on my 91 Mercury 100 outboard and cannot get the boat to start now. I checked the spark and have none. (Pulled the plugs out and turned the engine over with the plug held against the block). Does anyone know what happened?
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    New control box for 1991 Mercury 100hp Outboard?

    Hello all, I have a 16 ft Tahiti with a 91' Mercury 100 Outboard on it. I am in need of a new control box for it and am wondering how I can tell which control box i need? I did not have much luck googling.
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    Painting boat trailer fenders?

    Hi all, I have a 94' Shoreland'r jetski trailer that somebody unfortunately spray painted the white plastic fenders on. About half the paint stuck and about half has flaked off. I have tried getting all the paint off including pressure washing them but it isn't going to happen. My question is...
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