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  1. R

    Engine weight

    I have a 98 Nitro 640 lx with a 75hp Tracker that is not worth fixing. Looking to by a new Mercury 90hp. Seems like the weight difference is 150lbs. That seems like a lot to me but would really like to have a 90hp. Have a new SeaStar hydraulic steering that is for a Mercury so that is why the...
  2. R

    98 Nitro 640lx

    I am trying to find the maximum hp for my 98 Nitro 640lx. It does not have the sticker for weight, capacity and maximum hp. Boat dealers cannot help it seems.
  3. R

    98 75hp Mercury Force misfire

    Have a 75hp Mercury Force 1998. Runs smooth at an idle when increasing the throttle it seems to misfire every so often. Purchased the boat and motor last year and didn’t have problems the few times it was out. It is very easily flooded. Any thoughts on the misfire? Is this a timing issue? Have...
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