Search results

  1. M

    120 Mercruiser 2.5L - No spark

    So we just replaced the top coil that fires the spark plug. I’m not always down at dads on the water but he says didn’t change anything with new plugs, new coil
  2. M

    120 Mercruiser 2.5L - No spark

    http://www.marineengine.com/parts/mariner-outboard-parts/w8-mwmarathon/677057507-up/flywheel-magneto I was hoping that would light up blue for you to click
  3. M

    120 Mercruiser 2.5L - No spark

    All Dodge. Just helping my dad with his outboard. Mariner 8hp on his sailboat. Ran rough, under powered. Pulled the plugs, top was always wet. We put a new coil pack(Primary ignition coil) on the top…the cylinder that wasn’t firing. He put it back on and same problem. What should I do now. Oh...
  4. M

    Mariner 8hp W8(M) w Marathon - no spark upper cylinder

    Just helping my dad with his outboard. Mariner 8hp on his sailboat. Ran rough, under powered. Pulled the plugs, top was always wet. We put a new coil pack(Primary ignition coil) on the top…the cylinder that wasn’t firing. He put it back on and same problem. What should I do now. Oh and what Ohm...
  5. M

    120 Mercruiser 2.5L - No spark

    Do you guys know the measurement from the bowl gasket to the float seam for a 2.5L In line 4 on the Rochester 2 jet
  6. M

    120 Mercruiser 2.5L - No spark

    Thank you . The carb guy says to try unhooking the fuel line and running the carb dry. Will that get rid of the piece of crud on the needle or seat
  7. M

    120 Mercruiser 2.5L - No spark

  8. M

    120 Mercruiser 2.5L - No spark

  9. M

    120 Mercruiser 2.5L - No spark

    What does key off mean? Sorry. I can’t run it without the shift interrupter? Also, if there was dirt on my needle and seat valve, would it be acting up like this? I’m talking to the guy who rebuilt my carb, they are professionals and the guys to go to up in Canada. Some gas came out the vent...
  10. M

    120 Mercruiser 2.5L - No spark

    So could I try running it with the shift interrupter wire off my distributor. It will be hard to shift for that ride but at least I will know
  11. M

    120 Mercruiser 2.5L - No spark

    My plugs are black. Looks like the end was in a fireplace. Thin layer of suut
  12. M

    120 Mercruiser 2.5L - No spark

  13. M

    120 Mercruiser 2.5L - No spark

    Yep starts up right away and I can giver again
  14. M

    120 Mercruiser 2.5L - No spark

    Thank you so much. I think I have it perfect. Idling, then going fast, been 3/4 throttle for 20 minutes. I bring the gear shift back and the motor conks out. What am I doing wrong
  15. M

    120 Mercruiser 2.5L - No spark

    Also, if it runs mint once I get it into gear up to WOT, does that mean I have the right pressure coming out of my fuel pump
  16. M

    120 Mercruiser 2.5L - No spark

    It was sucking air. I have clear, real gas line from pump to carb. I put a new straw into the tank and sealed the anti-siphon threads. Not a bubble in the line. I bought a vacuum gauge to set the idle screws. When I put the vacuum gauge hose on the manifold spit I can’t get the engine to stay...
  17. M

    120 Mercruiser 2.5L - No spark

    Alldodge. I have the 120 going good. After the rebuilt carburetor and the shorting tach wire, it starts up. Just pump and start. Goes faster then it ever has. I went out set the timing. I bring it back, then into neutral. It will idle(not perfect) then if I leave it, it will slowly get worse...
  18. M

    120 Mercruiser 2.5L - No spark

    Alldodge. 1970 Rochester 2 jet 2cg. The idle mixture screw and the idle adjustment screw. Is screwing in clockwise, leaning it(more air less fuel) or richening it(more fuel less air)
  19. M

    120 Mercruiser 2.5L - No spark

    Thank you
  20. M

    120 Mercruiser 2.5L - No spark

    Alldodge sorry another question I installed clear gas line from my fuel pump to carb to see what is going on. It looks like there is air bubbles(big) once every foot at idle at the dock. Idles rough but stays running and better at higher rpm. Is this a clamp loose?
Top