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Johnson 115 troubleshooting

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  • Johnson 115 troubleshooting

    Hi guys, i'm an Italian bassman and i've a problem with my Johnson 115 PLSI OIS 2000 , 2001 motor.The problem is that this motor run bad,it turns badly, crakle very high and it does not take turns, lessened it stretches to flood making smoke.If i change the spark plugs the problem disappears and then motor goes strongest but only in order little time to return the problem and the new spark plugs is a lot smeared of oil. I use Champion QL78YC spark plugs.What is the troubleshooting of this outboard?Thanks for the reply and sorry for my bad English.


  • #2
    Re: Johnson 115 troubleshooting

    Welcome Mass - Do you have a shop manual? That is the best place to start. Next I would suggest that you do a compression test and post your results here. What is the maximum rpm that you get at wide open throttle? You might do some reading on checking timing, sync & link and rebuilding the carbs.

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    • #3
      Re: Johnson 115 troubleshooting

      Agree with SoLittle, you need a manual. Check everything he mentioned and also test the recirculation valves according to the manual.

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      • #4
        Re: Johnson 115 troubleshooting

        Thanks, i dont' have the shop manual but i understand that for you this problem is due to carburetors and not for electrical equipment.When i put a new series of spark plugs the motor run very good at a maximum speed of 5400 rpm , the prop is a Ballistic 21'' and my boat is a Ranger R71 17'1'' , maximum speed is 54-57 mph dependin on the water and wind condition , but this thing not remaing long and after trhee starting the problem return again.

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        • #5
          Re: Johnson 115 troubleshooting

          Welcome Massi,I'm not familure with the new engines, but it sounds like its getting to much OIL to me. I would think one of the Pros that frequent the site might be able to help. You should get a shop manual though>>it is a great investment if you are handy with a wrench.

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          • #6
            Re: Johnson 115 troubleshooting

            I can buy a manual bevcause i'm an artisan and i'm able to work well with wrench .Someone know what is a good publications for my outboard? I have seen this: -Seloc Publications Johnson Evinrude Labor Guide 1980-2000- but my motor is a 2001 year, is the same of this book or something is changed in the construction? -

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            • #7
              Re: Johnson 115 troubleshooting

              I've solved the problem.The problem was the power pack.Thanks for all the reply.

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              • #8
                Re: Johnson 115 troubleshooting

                I've solved the problem.The problem was the power pack.Thanks for all the reply.

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                • #9
                  Re: Johnson 115 troubleshooting

                  Originally posted by Massimiliano: I've solved the problem.The problem was the power pack.Thanks for all the reply.
                  Mass,I'm having a similar problem with a similar motor, can you tell me what you did to figuire it out, which book you used?Thanks,-e

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