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  1. M

    Another Model year and HP thread

    Hello all thanks in advance. I just bought a boat with what is supposed to be a 200 hp mercury / mariner the transom label is faded but the freeze plug cap is stamped 0G693618 I have searched all the parts search web sites and come up with nothing .. also this is the label on the carburetor...
  2. M

    Mercruiser 3.0 Exhaust ?

    I have a mercruiser 3.0 and it has two ports coming from the exhaust (one on both sides ) coming from the transom assembly one of the ports is causing interference with the side scan of my depth finder so my ? is can I block 1 side and send all the exhaust out the prop and the other side Thanks...
  3. M

    1994 Mercruiser 3.0 high idle off plane

    I have a 1994 3.0 mercruiser when coming off plane the boat will idle at about 1000 rpms I rebuilt the carburetor thinking that would fix the problem and it didn’t. I have checked to make sure the the choke is fully opened and that the throttle stop screw is fully seated and it is what I have...
  4. M

    Verifying Tach on 1994 3.0

    Ok guys im pulling my hair out here i have a 1994 3.0 my tech started acting crazy so I decided to check it with my shop engine analyzer which is a actron cp7677 I hooked it up at the tach put it on 4 cylinder ideal seamed right but half throttle it was showing 6500 rpm this is with a 14.5 23p...
  5. M

    Wiring diagram

    94 seapro with mercruiser 3.0 looking for a wiring diagram that would help me with wires behind my toggle panel I have a few wires in there hanging but not sure where they go ... 'Thanks Mark
  6. M

    Mercruiser 3.0 engine alignment

    I just replaced my Gimbal Bearing and when I checked the alignment I was only getting marks on the very top of the tool ... No big deal right I'll drop the front of engine down when i attempeted to do this I noticed that the front mount was already as low as it will go so i started checking the...
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