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  1. #1
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    Mar 2021
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    Alabama
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    17

    1987 Mercury 115hp (Power of Tower)

    I was able to crank the motor on muffs the other day and it would not pee but after a couple revs I must have loosened something in the lines as I started seeing water and It was coming out but barely not a drip but not a full on stream either. It idled fine and I did not notice gas coming out of the carbs (I had cover off). I then backed boat in water and It was very hard to crank and then while It was idling I noticed fuel spitting out of the top carb jet on the right side if you are behind the boat but left side of the carb if you are in the boat. I wonder if there could be anything simple to fix it? I highly doubt it but I just had carbs rebuilt in december and it has not been used since. This is the reason I am not on the water this week. the longer I was on the water the harder it was to keep it running. I had to crank and immediately give throttle. I was able to get it in gear without it dying and I just idled around for about 30 seconds.

  2. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
    Join Date
    Apr 2008
    Location
    Greenville, SC (US)
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    97,865
    #2
    Sounds like a float/needle/seat/arm problem in that carb. This needs to be addressed (make sure that all of the floats have been updated as well, the originals don't stand up to today's fuels).

    If you've not replaced the water pump yet, NOW would be the time to do so (96148A8 is a complete kit and should do the job nicely for you).


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
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