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    Why does V6 150hp 1991 blackmax bog down and stall on acceleration?

    Just taken boat on lake after new plugs and tune up. Set idle and max timing according to manual . Soon as in she hit the water it wouldnt idle fast enough. Sped up idle and then it bogged down and stalled after it reached about1500 rpm. I noticed that i had to make a lot of adjustment to reach...
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