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    1977 70 johnson prop choice

    mounted on 16' 50" tunnel jon boat. need to replace prop. The one on it now is 13 3/8 17. dont have tach. Seems to rev hi and cavitate somewhat.Would I be better with cupped 13 1/4 19 ? Any help would be greatly appreciated!
  2. T

    1977 70 johnson prop choice

    mounted on 16' 50" tunnel jon boat. need to replace prop. The one on it now is 13 3/8 17. dont have tach. Seems to rev hi and cavitate somewhat.Would I be better with cupped 13 1/4 19 ? Any help would be greatly appreciated!
  3. T

    1977 70 HP JOHNSON

    everything worked fine til I had shop drop lower unit to replace seals. wnen I got it back shift controls tight & jam.seems shift lever on motor doesnt travel far enough to clear cogs in control.could he have something out of adjustment in lower unit? im scared to take it back fearing he might...
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