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  1. J

    1997 mercury 115 hp

    I switched the coil with the bottom cylinder and started it up and went back to running good. The coil has a male female plug on it. I am pretty sure it is the coil, Can they go bad after engine is hot?
  2. J

    1997 mercury 115 hp

    Ok that makes sense, the motor was running perfect it now has a miss and running rough after warmed up and going down canal. I am going to hook up spark tester the one you can run in series with the engine running to see which cylinder is cutting out. I am thinking it is one of the top cylinders...
  3. J

    1997 mercury 115 hp

    I am looking for the switch box on this engine and I only see ignition coils going to the plugs. Does this model: 115 explto serial: OG485647, have a switch box? I read that some only use the stator wires going to the coils.
  4. J

    1997 mercury 115 hp

    Yes I do trim it up and seems to run a little better, It was running perfect before it started the shaking, running seafoam in gas now and will continue to see if it clears up. And yes I love the engine after I purchased the boat and motor I found out the way the engine is designed, same thing...
  5. J

    1997 mercury 115 hp

    Took my sawzall and cut the top of the fuel water separator off did not see really any stuff in it. I know these motors I read about the stator going bad. Could the stator be causing the intermittent rough running at low speed?
  6. J

    1997 mercury 115 hp

    Yes 2+2 motor and I understand how they run on 2 cylinders and then go to 4 cylinders. I changed the hoses this year they are the black fuel line hose not that gray hose stuff. The motor ran very good first few times out, it shakes at low speed (going in no wake zone) and then clears out smooth...
  7. J

    1997 mercury 115 hp

    The engine is surging at low speed, it will run smooth but then start to load up, I changed the water filter separator it seems to run better at high speeds before changing filter it would load up at high speeds too. When I replaced the filter I dumped it into a clear plastic container and it...
  8. J

    1997 mercury 115 hp

    Makes sense thanks!
  9. J

    1997 mercury 115 hp

    I went to the boat today nice sunny day and the fast idle worked as should, boat has been sitting and we had a lot of rain maybe bad connection or moisture somewhere in the control box.
  10. J

    1997 mercury 115 hp

    Anyone else I really would like to find this switch.
  11. J

    1997 mercury 115 hp

    Ok but I still do not see a switch listed in the parts break down of the control box, If it is in the control box I think it will time to get another control box rather than mess with the old on. I was hoping it would be on the engine and not the box.
  12. J

    1997 mercury 115 hp

    I have a commander 3000 controls mounted on bayliner boat. If I push the center button on control box to raise the idle to start I get nothing, (this is how you control your speed in neutral). I have to get control in shift position to get motor to crank but I can't control the idle. So question...
  13. J

    Bayliner....no clearance to remove steering cable?

    I did this job on bayliner capri, as stated above cut the old cable out and remove from helm this way no lifting motor. You can get the new cable in but you have to file the out a little bit to get cable through. Most important is to CLEAN out the hole the new cable will go into piece of old...
  14. J

    2000 mercury 125hp saltwater outboard coil question?

    I have that same engine, it does not start very easy after hot run if all you do is give some gas before starting and it runs ok I would say leave it alone, but others may say different on the board who really know these engines
  15. J

    Is this steam normal.. 1984 50hp Mercury

    Expert no not at all just stating what my engine pressure is thats all !
  16. J

    Is this steam normal.. 1984 50hp Mercury

    Yes totally wrong at idle should be more like 5 or 6 psi, as I said before you get a pretty good idea that something is wrong if the pressure numbers start going lower than what is normal.
  17. J

    Is this steam normal.. 1984 50hp Mercury

    I think at idle 10 or 12 psi not sure, but when the pressure drops off you will know to shut it down to see whats going on!
  18. J

    Is this steam normal.. 1984 50hp Mercury

    I hooked up a water pressure gauge, good to now how the water pressure is and if it gets clogged or not, could check with infrared gun at least give you and idea of how hot!
  19. J

    1964 Merc 650 cylinder block-stripped spark plug thread

    Curious to know how you, if you fixed the spark plug thread?
  20. J

    1964 Merc 650 cylinder block-stripped spark plug thread

    I have a 115 hp mercury 4 cylinder, The second cylinder had a stripped spark hole from previous owner. I used a time cert, its thread that you screw into the stripped spark plug hole and you use the thread locking compound on the threads before you CAREFULLY thread the cert into the block. Now...
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