1970 Johnson 25 hp.

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  • May 13, 2025 at 6:53 pm #296409
    russ
    Participant

      I have a 1970 Johnson 25 hp model 25RL70E.I bought the carb kit from M.E in the kit there is a little white plastic called needle valve bearing.When I took the carb apart this was not in there.My question is how far is  this suppose to slide on?   It only goes on about a half inch I no the needle valve has to screw into the threads.Does this needle valve bearing not go in this carb?There are three small o rings and a fibre washer not sure.Would sure appreciate some guidance.Thank you,

      May 13, 2025 at 9:37 pm #296410
      crosbyman
      Participant

        Canada Member

        some kits hare multi-functional and have extra parts.

        install what is shown

        Johnson Carburetor Group Parts for 1970 25hp 25RL70E Outboard Motor

         

        Joining AOMCI has priviledges 🙂

        May 13, 2025 at 9:41 pm #296411
        fleetwin
        Participant

          US Member

          https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1970&hp=25&model=25002C&manufacturer=Evinrude&section=CARBURETOR+GROUP

          You are referring to item #28?

          What they refer to as a “bearing” is actually a seal.  This carb does not use the conventional packing and nut to seal the low speed needle, it uses this soft plastic sleeve to seal around the needle.

          The old one is probably still inside the carb, buried down by the mixing pocket.  I’m thinking if the old one is there, I would just leave it.  These things can be tough to fish out of there…

          May 14, 2025 at 6:19 am #296421
          russ
          Participant

            There is nothing  in the mixing pocket.The new one will not fit in the the front oft he carb.

            May 14, 2025 at 10:30 am #296425
            russ
            Participant

              Got in place thanks. Russ

              May 15, 2025 at 7:58 am #296449
              fleetwin
              Participant

                US Member

                Cool!  This can be very confusing because it is tough to determine if the seal is in place by looking inside the threaded hole for the low speed needle.  Like I say, this little rubber/plastic cup is what takes the place of the older style packing and nut.   So, if you have an engine that won’t idle consistently, or you just can’t seem to make it rich enough to idle, good idea to make sure this pesky seal is in place.

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