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    Mercury 1150 rpm problems

    First of all thanks to everyone for helping me with past boat problems. Now I have a new problem(s). My boats rpms are jumping around at wot, almost like it hesitate then takes off then hesitates, does this the whole time at wot, from idle to full throttle it takes off awesome. But half to wot...
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    mercur 1150 t&t

    i need info on filling my poer tilt and trim i drained it when i pulled my motor for a poerhead swap. I am not sure how to fill it or what screws to loosen to let air out, it is a mercury 1150 4859218. also i put an old power head on 75 or 76 sn starts with 46 or 47 i think. Was there no...
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    Mercury 1150

    Re: Mercury 1150 hear are some pics
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    Mercury 1150

    Hi, I am trying to replace the cover where the spark plugs go in but I have already broke 2 bolts off.is there any way to get these loose without breaking any more, and any suggestions on getting the broke ones out or would the 2 broken ones be fine to ignore, they are not next to each other...
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    replacing quicksilver controls in old mer

    I have and old and "huge" quicksilver controls in my boat. the question i have is trying to replace it with a different one. can i use pretty much any set of controls? I have a 7 pin harness on a 1978 merc 1150, i know you can get adapters. but could I just make my own harness, and say use...
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    1968 johnson t&T not working

    I have a johnson 1968 100hp i forget the model name but, it has power tilt and trim, which is not stock as ezeke informed me. The problem I have is i need to find a wiring diagram for it, all i know is it was mad by jamar industries cant tell what the model number is but it is electrical t&t not...
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    powerhead swap 1150

    hey everyone, I have a 1978 mercury 1150 with a melted number 3 piston, can i use a 1976 1150 powerhead to replace it and use everything else from my 1978 ie: carbs, dist., fly wheel? the only thing the 76 comes with is the head, no flywheel, no starter, no electronics at all. Is everything...
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    power T&T not working

    Hey Guy I appreciate everyones help with my Mercury, but now I am working with a 1967 Johnson 100hp Meteorite. My problem is my t&t doesn't work, you can hear the relays clicking but thats it. When I ground one wire and power the other it just sparks like it's shorting out. I tried it right off...
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    no power

    Hello everyone, I have a mercury 1150 sn4859218, The problem I am having is I have no hole shot and about 5 seconds after it reaches top speed around 28 mph it will start cutting out, almost like its starving for fuel, if I pull it down to 3/4 throttle it seems to run fine and runs about 24...
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    mercury controls

    I have a mercury 1150 4859218 78 i believe, the back plate on the control box is broken and I was wondering about using a different control box. the question I have is which ones would work? I really don't care for the one thats on there, quicksilver I think, I hate the way the key points out...
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    No Reverse on merc 1150

    First I would like to thank everyone, I have learned alot on this website. 1978 ranger bass boat not sure of the model 17 ft with the 2 bench seats 1978 mercury 1150 115hp long shaft serial number 4859218 The question I have is I was on the river yesterday, my boat would only go about ten mph...
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    1978 1150 prop

    I have a 1978 mercury 1150 sn 4859218, its on a 1978 Ranger not sure of the model, its 17ft and weights around 2300lb with the trailer. The reason im telling you this is I have a 17 prop on it and it sems to be running to high of throttle when the tach worked it would read over 6000 Rpm's, since...
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    Help 1978 mercury 1150

    hello
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