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    sportmaster ?

    I have a 2000 280 with sportmaster the other day I went to take off and I heard a bang then motor reved up and died cranked motor back up put it in forward and it idles around fine as normal give it a little gas and motor just revs up . I have checked the hub in the prop, shift cable, no damage...
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    tps test

    I need to know how to test the tps sensor on a 1998 mercury 225 efi , Thanks
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    225 efi lean sneeze?

    Have a 1998 mercury 225 efi motor was rebuilt less than 10 hours ago. At idle only in gear it sneezes once in a while . Any suggestions on what could cause this problem . Thanks
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    lower unit

    I have 1.75 gears in my lower unit i am wanting to switch to 1.62 . i know i have to change pinion and forward gear what about the reverse gear ?
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    175 mariner

    Have a 175 hp powerhead with carbs do not know the year I need to know the size of the powerhead is this a 2.5 L or maby a 2.8L ? thanks
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    brakes are draging

    :confused: Have a surge brake system an boat trailer recently put in new pads I think i got them adjusted right at first now about a month later they are both draging real bad maby they need more adjusting , any ideas thanks
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    lower bearing removal

    I have a 1998 a 225 mercury efi I am rebuilding motor . Everything has gone good but I can't figure out how to remove the lower bearing on the crankshaft. Is this bearing pressed on and off . Any ideas on how to remove bearing . thanks
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    what gear ratio do i have

    i have a 1999 225 merc efi and i was wondering what gear ratio i have. I counted the teeth on the gears the pinion gear has 12 teeth the forward gear has 22 or 23 teeth . is this a 1.75 or a 1.82 gear ratio thanks
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    heads

    I have 1 1999 225 mercury efi and i was wondering what size stock heads are on this motor ?
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    1999 225 efi sluggish take off

    i have a 1999 225 efi when i first leave the ramp and take off boat accelerates perfectly and runs good to fishin hole then when i get ready to leave the spot the motor takes off real sluggish but planes out and runs good any ideas what this could be. also when i turn the key on usally it makes...
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    225 efi missfire

    i have a 1999 225 merc efi motor suddenly started to missfire especially in gear it will hardly run noticed it was shooting a lot of gas out of exhast. any ideas what could be the problem
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    1999 mercury 225 efi

    a month ago was leaving the ramp i noticed the engine loss power then suddenly regained power and never died. over the past few times i had it out it would do it more often till 2 days ago it would not even take off notice it started to miss alot and start to smoke alot . any ideas what this...
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    1999 225 merc efi

    what is the difference between a 1999 225 efi and a 250 efi. how could it be up graded?
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    1993 150 mariner

    can this motor be up graded to a 200hp by changing jets in carbs.
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    hour meter ?

    i have a 1998 mercury 225 efi was wondering if there is a hour meter if so where is it located
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    water presure ?????????

    what should proper water pump presure be on a 1999 225 efi merc. ?
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    power loss

    1989 suzuki 150 engine idles good takes off sluggish then rpms start to drop noticed that fuel is not coming out of two small brass tubes in front of carbs any suggestions
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    powerpack ?

    have 1989 susuki 150 ss on the way back to boat ramp noticed a cylinder started to missfire eventually more till motor barly idles powerpack ?
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    nosedive

    have 1989 150hp suzuki super six top speed is 72mph no problems . now at 61 mph boat wants to nosedive to right any suggestions?
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