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  1. J

    76 1150 Bogging Down

    the motor is a 1976 Mercury 1150 115 HP on a 15 ft. tri hull with a 19 pitch prop. With three adults pulling a tube the boat would take a little while to plane. With approximately six adults the motor would not hardly get over five miles per hour. I checked the spark plugs and they were...
  2. J

    Prop Question for 76 I6 115hp

    I bought a new 17 pitch prop. Put it on and it ran good but then started running bad. When I checked the prop out when I was done the prop had fell back into the lower unit housing and I could move the prop forward and backwards betwee 1/2 inch and 1 inch. It was also cutting into the blades...
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