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  1. M

    Shift Rod or Something Else?

    Update. Fixed. Brought the motor to a mechanic (imagine that). Compression seemed fine. Spark plug coils not getting enough spark (enough that I could see them--but maybe not strong enough?). Isolated the issue to a bad power pack. Replaced power pack. Tested in water. Determined it also had a...
  2. M

    Shift Rod or Something Else?

    Update: To rule out bad gas, I bought a one gallon gas can, filled it with 91 fuel, added 50:1 oil ratio, and--because I thought it might help clean the carbs--poured an entire can of seafoam in as well (a sign of desperation I'm sure you will think) . After priming the bulb and attempting to...
  3. M

    Shift Rod or Something Else?

    I will post any updates or resolutions if I discover the underlying issue. Please send me any ideas if there is something I should consider—as I’m still trying to get to the bottom of this! Thanks!
  4. M

    Shift Rod or Something Else?

    Spark to both plugs. Top cylinder is getting about 119 and bottom cylinder is getting about 116. I wasn't able to get the motor running (of course that would be the case :/) It would fire off for a second or so and then quit. So, the compression test was not able to be completed on a warm...
  5. M

    Shift Rod or Something Else?

    I did consider that on reinstallation—though it would not be following the manual and I felt that there might not be much thread left to raise it that height. I’m confused still how the shift rod height and cable might prevent more throttle—and I wanted to double check before taking everything...
  6. M

    Shift Rod or Something Else?

    Long shaft. I removed the lower unit in neutral and recorded the distance to make sure I reinstalled the same (21"). Specifications in the original manual are 21 7/32" with the gear in reverse. In my mind, I thought I was putting it back as it was, and, imagined that reverse would increase the...
  7. M

    Shift Rod or Something Else?

    Sorry for the confusion. I replaced one "o" ring in the shift rod cover assembly (the small one that is a bit tricky to remove). I also replaced the two oil retainer seals on the driveshaft (just below the water pump, inside the drive shaft bearing housing). I filled lower gear unit with oil...
  8. M

    Shift Rod or Something Else?

    Hi, Everything was running fine on my 73 Johnson 50hp outboard until I discovered cloudy lower gear unit oil. After a pressure test and submerged lower unit, I identified leaks by the shift rod and drive shaft. I replaced the back-to-back seals below the shift rod housing and a gasket on the...
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