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  1. M

    120 Mercruiser 2.5L - No spark

    Thank you
  2. M

    120 Mercruiser 2.5L - No spark

    Oh and it dies way before I bring back to slow. With the 4.5psi pump. It dies at like 2200 rpms and anything under that
  3. M

    120 Mercruiser 2.5L - No spark

    Because there is no way I could get it into gear the way it is running. So the shift interrupter doesn’t matter.
  4. M

    120 Mercruiser 2.5L - No spark

    If I unhook it off the coil and do everything else the same at the dock, will that be a way to test it. I want it eventually to stop dripping when I shut the key off. That was the initial problem I wanted to fix. Everything has become worse when I went to the lower pressure pump.
  5. M

    120 Mercruiser 2.5L - No spark

    When you say check. To see if it is grounding and talking to the negative side of the coul
  6. M

    120 Mercruiser 2.5L - No spark

    Yep. For an old girl it was 135-140psi. So check under the distributor to make sure everything is set perfect. The carb specialist(I would just take it to him to fix but it is 1.5 hrs away) always texts me back tries to help. He told me to vent the gas tank, to see if the rpm lower will stay...
  7. M

    120 Mercruiser 2.5L - No spark

    So I thought my pump was causing the flooding problem. It measured 6-7.5 lbs output, so I put the fuel pump I’ve always run. Now it won’t get anywhere near idle. When I undo the fuel line at the carb, it pulls off and squirts as if it was under pressure, like couldn’t get in the carb
  8. M

    120 Mercruiser 2.5L - No spark

    With the 4.5 psi pump on now it wont run below 2200-2400 rpm. If I bring the throttle below half throttle at the dock, it just dies out. To start I put neutral 3/4 just to get it going again
  9. M

    120 Mercruiser 2.5L - No spark

    So if I set the float to shut the needle a bit sooner will stop the flooding/the drip.
  10. M

    120 Mercruiser 2.5L - No spark

    The seat is totally clean, has a brand new gasket(nice, red fibre washer) on it. The needle is new, tip looks perfect
  11. M

    120 Mercruiser 2.5L - No spark

    Everything is brand new. I had it all rebuilt. Now that I have pulled it all apart, I could have done it myself with a kit.
  12. M

    120 Mercruiser 2.5L - No spark

  13. M

    120 Mercruiser 2.5L - No spark

    I opened her up last night. I have it like the schematic you sent me. When it’s up it is 3/8 of inch from gasket to toe. When it drops(on dry land - air horn off in my hand) it is less then 1 3/4 inches hanging down if I measure to the exact same spot.
  14. M

    120 Mercruiser 2.5L - No spark

    Post about my Mercruiser now. Carb floods so I checked the needle and seat, re-cleaned everything. Boat works ok. Shut key off and gas drips from venturi’s a bit. Thought it was the mechanical fuel pump, so I put my other one on. Pressure test at 4.5lbs. To start the boat I have to give lots of...
  15. M

    Mariner 8hp w Marathon only firing bottom spark plug

    So we know that the exterior coils are ok. I ohm tested them. My dad is impatient and he bought new one’s without telling me. Still no spark to top cylinder.
  16. M

    Mariner 8hp w Marathon only firing bottom spark plug

    Thank you for answering. We are up in Canada, no salt water. But good tip. It is a special motor. It has 4 coils, two with the magneto and two exterior. It actually charges the battery to run other stuff while it is driving...
  17. M

    120 Mercruiser 2.5L - No spark

    In the mercury/mariner outboard forum nobody answers, but over here I have one problem and you guys help right out. I don’t get it
  18. M

    120 Mercruiser 2.5L - No spark

    How come when I put stuff
  19. M

    Mariner 8hp w Marathon only firing bottom spark plug

    This is the Flywheel on a mariner 8hp but is a Marathon with a special Flywheel. Do we need a puller to get it off
  20. M

    Mariner 8hp w Marathon only firing bottom spark plug

    Serial # 677-364773 My dad’s Mariner on the back of his sailboat always has run great. Started to lose power and just run on 1 cylinder. The top spark plug was always wet. He boat a new secondary coil(nice grey one, attached on the outside of the motor with wire going to spark plug). Put it on...
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