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    1994 150hp merc surging at 4000 rpm

    Please help!! I have a 1994 150hp merc outboard that has been giving me some problems. The motor will maintain about 4,000 rpm when it will usually hit 5,500 with no problem. I can back off of the problem and floor it and it will hit the 5,500 makr before dropping back down to 4,000. I had...
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    1994 150 Merc Carbs

    I am considering rebuilding the carbs on my 94 150hp merc black max and was wondering if I should be attempting to do so. I have rebuilt the carbs on an old 40hp yamaha and did fine. I will buy a manual to help me along, but will I need any special equipment to tune the carbs for each cylinder...
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