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    White smoke coming out of the airbox

    Hi!

    First of all greetings from Portugal, gotta say this is one hell of a community!! I'm a newbie in bike matters and definetly a newbie on technical and mechanical matters. But I gotta say that I am thrilled and I want to learn.

    So let's get to work.

    I'm the proud owner of a fully stock 1979 GS850G and recently I noticed some white smoke coming out of the airbox.

    Can someone please tell me what this means?


    #2
    Oil vapor and blow by gases come off the top of the valve cover and are sent over to the airbox via a rubber tube. The gases then escape out the bottom of the airbox via a breather.
    Ed

    To measure is to know.

    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

    Comment


      #3
      The gases get sucked back into the engine and reburned when running. Does it smoke when running or off???
      MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
      1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

      NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


      I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

      Comment


        #4
        Many service manuals here and tutorials on both margins. Spend some time clicking around and save to your favorites list.

        MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
        1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

        NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


        I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

        Comment


          #5
          Parts fiches here..........

          MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
          1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

          NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


          I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

          Comment


            #6
            Carbs rebuild kits here and the intake orings are on page 3...................

            MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
            1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

            NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


            I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

            Comment


              #7
              Originally posted by Nessism View Post
              Oil vapor and blow by gases come off the top of the valve cover and are sent over to the airbox via a rubber tube. The gases then escape out the bottom of the airbox via a breather.
              Thanks for such a fast reply!!
              Sorry for my lack of knowledge but is it normal or is it something abnormal?

              Comment


                #8
                Originally posted by chuck hahn View Post
                The gases get sucked back into the engine and reburned when running. Does it smoke when running or off???
                I noticed it when I ran it for a couple of hours in a small gathering here in my hometown, and it was a bit hot that day. But in other rides - solo, I still notice it but the bike doesn't feel different its just the white smoke.

                Comment


                  #9
                  Originally posted by miguel View Post
                  Thanks for such a fast reply!!
                  Sorry for my lack of knowledge but is it normal or is it something abnormal?
                  Normal for the most part. If there is a lot of blow by though that's not good though. I wouldn't worry and just work on maintenance.
                  Ed

                  To measure is to know.

                  Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

                  Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

                  Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

                  KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

                  Comment


                    #10
                    Originally posted by chuck hahn View Post
                    Many service manuals here and tutorials on both margins. Spend some time clicking around and save to your favorites list.

                    http://members.dslextreme.com/users/bikecliff/

                    Thanks!!! I went ahead and started sniffing around the web for original factory manuals and even got the haynes manual! Got parts lists, user manuals. Thing is, I'm not much of a mechanic - lets put it this way, I want to venture myself but I lack of time due to the fact that where I am currently living - Lisbon ( wich is like 300km from my parents house where the bike is), I still don't have a garage. Now I have "some" weekends where i try to come "home" and work on her.

                    Again, thanks so much for the fast replies with great advices!!!

                    Comment


                      #11
                      Bikecliff has the OEM factory ones. Haynes and Clymer have both been known to have missing and / or eronious info from time to time.
                      MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                      1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                      NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                      I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                      Comment


                        #12
                        Thanks for the support!

                        I got them aswell

                        Comment

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