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  1. K

    1971 1150 mercury engine question

    Hey All: Up graded an old engine. (1150 mercury L6 Ser 3025492) cylinders in the 120's New upgraded trigger. Check on switch box OK. New fuel pump diaphrams and check valves. New filters and floats in carbs. New starter. Started up normal on pressure hose adaptor on water intake. P hole showed...
  2. K

    1971 1150 mercury engine question

    Manual describes a plastic locating pin some where on the crank. Anyone know where it is? Manual says will cause engine to run tight at low rpm, which is what the engine is doing. Does it need a power head overhaul? Otherwise runs good. Keeline
  3. K

    impeller replacement

    1971 mercury 1150, minimum required for impeller replacement.
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