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Recent content by Indecentspeeds

  1. I

    Backfire through carb; 1999 Johnson 70hp J70PLSSD

    Both, running the engine in the water. (I have a 150 gallon tank). I found a CDI trouble shooting manual. I started trying to run through testing some of the electronics. Tested the Coils- all good Powerpack test good on resistance Tried testing the stator and timing base. All checked out...
  2. I

    Backfire through carb; 1999 Johnson 70hp J70PLSSD

    Pulled and soaked the carbs, bowls were pretty clean, tiny bit of residue, I always run REC90 fuel so I wasn’t expecting much. I ran the engine today on a 6 gallon portable with brand new fuel and it ran the same. While I had the carbs off I inspected the reeds and they look perfect, nothing...
  3. I

    Backfire through carb; 1999 Johnson 70hp J70PLSSD

    Need some assistance on what to try next; hadn’t used the boat in about 6 weeks, it fired up no problem at the ramp but was idling just a touch off, I didn’t think much of it, figured it was just a cold start. Pulled away no problems, ran smoother at 1500 rpm, but it wouldn’t rev past 4000 RPM...
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