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    89 merc 70 horse 3 cyl runs rough

    out fishing the other day trolling boat ran good across the lake then lost most of its power couldnt get it to plane out go it to the launch was puking out foamy oil/water/gas mixture out of the three port exhaust... i changed the gas put new fuel filter on... seems as if its not running on all...
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    HELP! 89 mercury 70 horse stuck in reverse

    i just put the power head back on the intermediate housing it seems that when i put the shift road back in i may have put in the wrong spot? do i have to take powerhead back off to fix it and how do i fix it thanks in advance for your help
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    89 mercury 70 horse

    where is the best place to find parts for this motor?
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    power trim tilt system on 89 mercury 70 hp very slow trim tilt up

    my mercury 70 horse 1989 has the 3 piston type system that mounts between the transom brackets seems to go down good motor makes noise but trims up very slow checked oil thats good.... kinda seems to jump a little when trimming up any ideas or solutions thanks
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    89 mercury 70 horse trying to remove swivel bracket from motor due to stiff steering

    89 mercury 70 horse power trim power tilt 2 stroke oil injected motor steering really stiff in the bracket please help motor is sitting on bench could use some advice thanks
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