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    Best Repair Manual

    What manuals are the best for trouble shooting and component testing procedures?
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    1973 mercury 850 not getting over 4200RPM @WOT

    i have 1973 mercury 850 that is running fairly well but there are a few quirks with the motor i would like to solve if at all possible first off the motor is on a 1986 sylvin 16 ft aluminum boat customized into a center console. so the boat is very light. the problems i am having is this, at WOT...
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    1973 Mercury 850 spark problems

    hello everyone i am relatively ner here at iboats But have been working on mercury outboards for a year and a half and am pretty compitant with these motors now but i am stuck here. First i have some spare ignition parts off of another mercury 850 and they are not the same as what i have on the...
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