Recent content by 7325johnsonhelp[

  1. 7

    1973 25 Hp. Johnson Running Rough

    lately, I've noticed what looks like fuel leaking out around the carburetor. Considering the motor seemed to be running fine and then suddenly began missing, at full throttle, could this be a carburation issue, possibly separate from the condenser/spark issue? I rebuilt the carb using a kit and...
  2. 7

    1973 25 Hp. Johnson Running Rough

    My bad, "low speed."
  3. 7

    1973 25 Hp. Johnson Running Rough

    It was running fine. It started sputtering at full throttle after running for about an hour. I ran it in that condition for about an hour getting back to the dock. The condenser for the top cylinder was found to be arcing. The condensers checked out okay on the multimeter and the arcing stopped...
  4. 7

    1973 25 Hp. Johnson Running Rough

    Oh yeah, I disconnected the coils from the kill switch to make sure I wasn't dealing with similar symptoms from different sources but no change.
  5. 7

    1973 25 Hp. Johnson Running Rough

    I did try turning the high speed mix to lean till she coughed and back to normal. No help. Is that what you meant?
  6. 7

    1973 25 Hp. Johnson Running Rough

    It's definitely running rough. At last check I had spark to both cylinders. She cranks up fine and idols adequately but when its throttled up it sputters. it speeds up some but the rpms never get nearly as high as they should be. No power, tank run, in neutral, and circulating fresh water. I...
  7. 7

    1973 25 Hp. Johnson Running Rough

    I've been "probably" over thinking this. The motor ran fine after the tune up for about an hour, various throttle positions, before it started missing. I'm thinking a combination of distance, time, and insulation. I think it was insulated and far enough away, barely, from the condenser case that...
  8. 7

    1973 25 Hp. Johnson Running Rough

    I redirected the wires, buttoned it up, pulled the plugs, and she sparked fine! Duh!
  9. 7

    1973 25 Hp. Johnson Running Rough

  10. 7

    1973 25 Hp. Johnson Running Rough

    I checked both condensers and they're good. However, Look like an issue to anyone?
  11. 7

    1973 25 Hp. Johnson Running Rough

    Disconnected coils from kill switch, pulled plugs, turn over motor... no spark top, bottom spark fine. I've inspected all the wires and connections involved and they all look good to me. Next stop, multimeter on the condensers I suppose. I tuned my first car, a 68 Camaro, "under the shade...
  12. 7

    1973 25 Hp. Johnson Running Rough

    Lastly, can't I confirm a problem with the kill circuit by just disconnecting the switch where in connects to each coil and running the motor?
  13. 7

    1973 25 Hp. Johnson Running Rough

    In turn, I disconnected each coil/points from the kill switch where the two wires connect to one and checked continuity from the connection /one wire through the kill switch to battery/frame ground, no continuity regardless of kill switch position for either connector. The only continuity...
  14. 7

    1973 25 Hp. Johnson Running Rough

    Thanks. I'll do that. When I was running the wires from the ignition coils down I wondered about that as my kill switch is old and looks pretty worn.
  15. 7

    1973 25 Hp. Johnson Running Rough

    Update; No spark top cylinder. I just replaced the driver coil and no change. Pulled both plugs, left one in the boot and turned over the motor. Took turns with each plug. No spark top cylinder. Swapped out top ignition coil with one from a similar motor, no spark. Swapped out the two new...
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