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    Need lots of information please

    After some years of absent from boating i just purchased a 1982 mark twain sonic 210sf I/O and all i know is that it has a 3.8 GM engine and a OMC oudrive I need to know more about the outdrive It needs repair and I also need to know who manufactures this boat I need repair manuals for boat and...
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    1990 120HP Johnson info

    Can any one tell me about this motor I'm planing to buy it to replace a force 120HP in my 21' bayliner trophy. Is this a good saltwater engine and if there's any known problems etc.? the serial # is J120TLESB. Thanks to All.
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    1998 125HP loss of power

    -------------------------------------------------------------------------------- On a force 125hp I can't get the boat to go past 2500 rpm and 6 to 8 kts. we have checked carbs and the mech say they are ok, next he checked fuel pump and ok next checked current and plugs and ok next checked for...
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    1990 129hp and 1988 125hp

    can I use the lower unit from the 1990 120HP on the 1988 125HP
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    swap

    Can any one tell me if I can use the lower unit from a 1991 force 120hp on a 1988 force 125hp. they look the same on the exterior except for the water inlets. Thanks to all
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    Information

    I just got this force 125 hp but I don't know the year and what kind of engine this is? on the plate the model # 1251X8C and the serial # 2692 Please I need as much info on this engine as possible. This engine is going to replace my1991 120hp(force) that I blow last week. Thanks to all:%
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    Prop size

    I need the prop size for a 1991 21' Bayliner trophy walkaround with a 1991 Force 120hp the approximate weight is 2850 lbs and 8' Bea<br />Thanks for the info.
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    Force 120 (1991)

    :eek: I can get my 21'trophy to go past 3200 rpm<br />if i push it maybe i can get 3500 to 3700 but the buzzer starts. also the speed shifter gets hard after 3300 rpms.<br />someone suggested rebuilding and synch the carbs.<br />Any Help is greatly appreciated.
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    2002 Info

    I have a 1991 2002 with a 1991 force 120hp anyone with the same setup that could tell me the size prop I should be using? and how this set up is overall?<br />Thanks for all the Information Diego..
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    Urgent ..Prop Size

    Please I need prop size for 1991 Bayliner Trophy 2002(21' walkaround) with a 1991 force 120hp.<br />The old one had no markings.<br />Thanks to all. :confused: :o
  11. D

    Urgent ..Prop Size

    Please I need prop size for 1991 Bayliner Trophy 2002(21' walkaround) with a 1991 force 120hp.<br />The old one had no markings.<br />Thanks to all. :confused: :o
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    overheating

    on 1991 Force 120Hp I ran the engine without water for 3 to 5 minutes,this caused the impeller to brake. I replced the impeller along with housing and gaskets,there's water shuting from the 3 holes in the back of the unit,I the took the boat for a spin and after 1/2 mile out the overheating...
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