A general question

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  • brcree
    XStremely XSive
    • Mar 2010
    • 388
    • S.C.
    #1

    A general question

    What would cause white-ish / gray-ish smoke out the pipes on deceleration. This would be after going up through the gears and, just letting out of it. Carbs have been cleaned. Thanks......
    At this time:
    1985 Goldwing Innr.
    1976 cb 750 cafe racer
    2007 vtx 1300
    81 sx 1100 s h
    81 sx 400 special
    Tags: None
    • jetmechmarty
      Master of XSology
      • Nov 2003
      • 7763
      • Coldwater, Mississippi
      #2
      Is it popping on deceleration as well? White smoke would concern me. I think it's lean. White smoke is usually water vapor. What is the condition of your oil? Could there be gasoline in the crankcase mixed with the oil?
      Marty (in Mississippi)
      XS1100SG
      XS650SK
      XS650SH
      XS650G
      XS6502F
      XS650E

        Comment

        • brcree
          XStremely XSive
          • Mar 2010
          • 388
          • S.C.
          #3
          question

          Its a friends bike a, 79 zr1100....air cooled so. I'm just taking a stab at this. He wants me to look at this machine.....we are just at the chatting point on it now. Don't know what he has done to it....its a long shot i know. Just start-en the adventure. It could be gas in the oil.......wont know till he brings it over for me to look at.
          Last edited by brcree; 03-11-2013, 05:36 PM.
          At this time:
          1985 Goldwing Innr.
          1976 cb 750 cafe racer
          2007 vtx 1300
          81 sx 1100 s h
          81 sx 400 special

            Comment

            • crazy steve
              XS-XJ Guru MODERATOR
              • Jan 2009
              • 7932
              • Beautiful outer Yelm, WA
              #4
              Could be valve seals/guides; ask him if it uses oil....
              Fast, Cheap, Reliable... Pick any two

              '78E original owner - resto project
              '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
              '82 XJ rebuild project
              '80SG restified, red SOLD
              '79F parts...
              '81H more parts...

              Other current bikes:
              '93 XL1200 Anniversary Sportster 85RWHP
              '86 XL883/1200 Chopper
              '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
              Cage: '13 Mustang GT/CS with a few 'custom' touches
              Yep, can't leave nuthin' alone...

                Comment

                • brcree
                  XStremely XSive
                  • Mar 2010
                  • 388
                  • S.C.
                  #5
                  question

                  Hey Steve...that was my first thought too. Just looking around at any other possibilities as well. Thanks man..
                  At this time:
                  1985 Goldwing Innr.
                  1976 cb 750 cafe racer
                  2007 vtx 1300
                  81 sx 1100 s h
                  81 sx 400 special

                    Comment

                    • oldyam80sg
                      XS-XJ Guru
                      • Apr 2007
                      • 2041
                      • Hackettstown , New Jersey
                      #6
                      When i had my accident on my ZRX last August,gas leaked from petcock into the oil.The exhaust would stink like a weed eater and blue smoke would come out.Glad i caught it before riding.
                      1980 XS1100 SG
                      Inline fuel filters
                      New wires in old coils-outer spark plugs
                      160 mph speedometer mod
                      Kerker Exhaust
                      xschop K & N air filter setup
                      Dynojet Recalibration kit
                      1999 Kawasaki ZRX1100
                      1997 Jeep Cherokee 4.5"lift installed

                        Comment

                        • XS1100_OEM4ME
                          XS-XJ Guru
                          • Mar 2009
                          • 1619
                          • Fort Myers, Florida
                          #7
                          Smoke

                          Originally posted by brcree
                          What would cause white-ish / gray-ish smoke out the pipes on deceleration. This would be after going up through the gears and, just letting out of it. Carbs have been cleaned. Thanks......
                          Does it also smoke at start up? If so, sounds like valve seals. The oil leaks down when sitting and causes smoke at start up, it will also smoke at de-cell as the oil is sucked into the combustion chambers, JAT
                          1979 XS1100 Special (Mad Max, OEM) Current
                          1980 XS1100 Special
                          1990 V Max
                          1982 KZ750 LTD Twin
                          1986 700 FZR Yamaha Fazer (faster then expected)
                          1979 XS750 Special (my 1st Special)
                          1974 CB750-Four



                          Past/pres Car's
                          1961 Catalina 389/1970 Torino GT 351/1967GTO 12to1 comp./ Roller cam/ T-10/ 456 gear/Tri-power/1967 GTO 400, 1969 Camaro, 1968 Z28, 2001 BMW M Roadster 0 to 60 in 4.5 sec. Jaguar XK8

                            Comment

                            • jetmechmarty
                              Master of XSology
                              • Nov 2003
                              • 7763
                              • Coldwater, Mississippi
                              #8
                              It could be running really, really, hot.
                              Marty (in Mississippi)
                              XS1100SG
                              XS650SK
                              XS650SH
                              XS650G
                              XS6502F
                              XS650E

                                Comment

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