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    1979 Mercruiser 120 bogs when under load

    My boat runs great in the yard, but under a load in drive it just bogs down. I have new coil, rebuilt carb, fuel pump, fuel filter, water seperator, plugs, wires, dist. cap., points w 22gap, button, exhaust manifold, new gas. While in the lake it will take full throtle in reverse, but in drive...
  2. C

    Mercruiser shuts down in drive

    I have a 1979 Mercrusier 120 that the motor runs great in neutral and reverse, but the second you put it in drive the motor cuts off like a it has been hit by a kill switch. Anyone have any ideas?
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