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  1. M

    Is my lower unit bad???

    I have a 1999 mercury 225 DFI v6 3.0. The other day I put the boat in gear and was at about 2000 rpm when the motor made acrazy noise and all of a sudden lost all power. The engine will run fine and rev up but the prop will not spin. I removed the lower unit and the main shaft and prop shaft...
  2. M

    prop wont turn when in gear

    Yesterday i was cruising around looking for obia when all off a sudden my motor mad a crazy sound and the boat jerked. It almost felt like i had hit something but im 90% sure i didnt unless it was a turtle or something. When i put the boat in gear i get no rotation on my prop. I put the boat in...
  3. M

    1999 225 mercury optimax

    Last trip out on the boat i noticed water in my fuel due to a bad anti siphon valve. So i had my fuel tank cleaned out and polished along with filling the tank completely up. So yesterday i took the boat to the ramp and tried powering up. Whats happening is the motor cranks but will not fire. So...
  4. M

    1999 mercury 225 fuel problem

    Bought my first boat last week and it has had a continuous problem with the fuel system. Took the boat out twice and it ran great. The third time and everytime since has been a problem. I was cruising along at 4500 rpms when the engine started cutting down all the way to 2000 rpm at wot. I...
  5. M

    1999 mercury 225 dfi driving me crazy

    I recently bought a boat with a 99 mercury 224 with 350 hrs on it. Took it on a sea trial before i bought it and it ran great. second time i took the boat out after running it all day on the ride home it started acting like it was low on fuel. I though i had run out of gas like some kind of...
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