Need some outboard help

[takurkidsfishn]

I had a 115 merc that sounds like the same thing I did every thing fuel wise new fuel pump in line filter system went through all the carbs cleaned the jets but nothing seemed to help would run half throttle ok and at full throttle it seemed to lose a cylinder so one day had someone in my boat driving at full throttle and when it started to die I would put extra pressure through the bulb and the cylinder would fire and take off again when I watched this I noticed air being pumped through the clear filter and decided that I was sucking air somewhere to finish this I decided it was the main line inside the tankso when I took this off the line inside the tank was still attached but not sealed so I resealed the the line and it worked well. may not be the problem with yours but some thing to look at.
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