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  1. J

    98 johnson 50hp wont idle

    I dont think there is a high speed mixture screw. Yes both carbs are closed at idle and I've tried bumping up the idle speed set screw and idle mixture screws. How would you test lower crankshaft seal or what are the symptoms?
  2. J

    98 johnson 50hp wont idle

    Ok put new rollers on it and got everything adjusted. It idles longer but same thing just acts like you turn it off and dies. Driving me crazy lol
  3. J

    98 johnson 50hp wont idle

    Thanks man I'll get parts ordered and post an update
  4. J

    98 johnson 50hp wont idle

    Sorry the model is J50TSLECC and you are correct plastic top SV style. I didn't run anything through the holes just sprayed carb cleaner like you said and followed up blowing air behind that. Gaskets looked the same.
  5. J

    98 johnson 50hp wont idle

    I adjusted them while the engine was off. It won't idle long enough for me to adjust them. I thought the high speed jet was in the bowl behind the bowl drain bolt and thought it was non adjustable. I disassembled it all sprayed with carb cleaner and blew out all the holes with air compressor. It...
  6. J

    98 johnson 50hp wont idle

    I put them at 3 1/2 turns out as the manual says and have turned them in 1/4 turn at a time to 1 1/2 out and turned them out 1/4 turn at a time to 5 turns out don't seem to make a difference
  7. J

    98 johnson 50hp wont idle

    Hey guys I'm working on a 98 johnson 50hp for my cousin. I Rebuilt the carbs and put a water pump in. Last summer he said it didn't want to idle at low rpm so that's why I rebuilt them. I didn't notice any dirt or gunk in the carbs.Now it will start and idle for maybe 10 secs then die. Pulled...
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