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  1. C

    Recommended gas for 25hp 4 stroke bigfoot Mercury 2003?

    I had big carb problems with this and recently changed it. My friend has the same motor and only uses racing style gas 98 oct no ethanol from the only station areound here that has it. It's ca $8 a gallon and that's what I've been using. Another station has "premium" without ethanol that 91 or...
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    25hp 4 stroke bigfoot Mercury won't go into gear anymore

    It was working OK but recently when I put it in neutral and turned the key off there was an extra sound like a metallic spinning for a few seconds. One day I tried putting it in reverse but it won't forward instead. Yesterday it wouldn't even go forward. I'm green on motor work but would like to...
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    Could this be causing my fuel starvation problem in carb of 2004 bigfoot mercury 25hp 4 stroke

    This rubber thing (is it called bellows?) had some drops of gas around it when I was moving the throttle up and down. I was trying to see if any cracks or faults could be seen and as I was pushing a bit on it noticed it came off it's connection without much force from me. I also seemed to see a...
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    Advice directions needed to remove carburator 2004 bigfoot mercury 25hp 4 stroke

    I'm a real beginner when it comes to doing things on motors. Sometimes I've fixed things though when I had a good video showing what to do. I bought a rebuilt carb for this motor and would like to try to put it in. Really fed up with the local dealer who has a monopoly on boat motor repair...
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    water not coming out of 2004 bigfoot mercury 25hp outboard

    I am trying to see if I can get the water to come out of the peehole. Last year it wouldn't come out and I knocked a Mud Daubers nest off the top (see photo) and the water started flowing again. I took weedeater string and cleaned out the peehole as far as I could go. Then down by the Fin...
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