found wood in the air box!

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • dansmith65
    Administrator
    • Aug 2017
    • 138
    • Kootenays, BC , Canada

    #1

    found wood in the air box!

    It looks like it's meant to hold the intake tube in place. Maybe the tube got warped/lost its shape at some point? I'm assuming that chunk of wood is messing with the airflow, but if I take it out I need to find an alternative way to hold that piece in place. Any thoughts/ideas?

    80 SG Canada
  • DiverRay
    Moderator
    • Nov 2004
    • 7600
    • Star, IDAHO

    #2
    That goes into the "dirty" air side. You could pull the snorkle and clean everything up with alcohol, and then glue it into place. Use the wood while the glue dries. I would use the 3M weatherstrip glue.
    Ray Matteis
    KE6NHG
    XS1100 E '78 (winter project)
    XS1100 SF Bob Jones worked on it!

    Comment

    • dansmith65
      Administrator
      • Aug 2017
      • 138
      • Kootenays, BC , Canada

      #3
      Thanks again; sounds like a good idea. I've never heard of that 3m weatherstrip glue before, but I looked it up and sounds like useful stuff!

      I recently found Seal-All in a local store and probably would have used that if I hadn't heard otherwise. Has anyone here used Seal-All before?
      80 SG Canada

      Comment

      • MPittma100
        XS-XJ Guru
        • Aug 2011
        • 2359
        • Atlanta, GA.

        #4
        Adhesive

        Originally posted by dansmith65
        Thanks again; sounds like a good idea. I've never heard of that 3m weatherstrip glue before, but I looked it up and sounds like useful stuff!

        I recently found Seal-All in a local store and probably would have used that if I hadn't heard otherwise. Has anyone here used Seal-All before?
        Not used seal all. The 3M w/s adhesive comes in black also.
        1981 XS1100H Venturer
        K&N Air Filter
        ACCT
        Custom Paint by Deitz
        Geezer Rectifier/Regulator
        Chacal Stainless Steel Braided Brake Lines
        Chrome Front Rotor & Caliper Covers
        Stebel Nautilus Horn
        EBC Front Rotors
        Limie Accent Moves On In 2015

        Mike

        Comment

        • Radioguylogs
          XS-XJ Guru
          • Nov 2012
          • 1933
          • Presque Isle, MI

          #5
          Seal-all is good stuff

          I use Seal-All semi-regularly.

          It's the best product when gas is involved.

          I think weatherstripping glue might be better for your job. Seal-All sticks well to almost anything, but it can peel like silicone glue in a flexible application like yours.
          -Mike
          _________
          '79 XS1100SF 20k miles
          '80 XS1100SG 44k miles
          '81 XS1100H Venturer 35k miles
          '79 XS750SF 17k miles
          '85 Honda V65 Magna ~7k miles
          '84 Honda V65 Magna 48k miles (parts bike)
          '86 Yamaha VMAX 9k miles

          Previous: '68 Motoguzzi 600cc + '79 XS750SF 22k miles +'84 Honda V65

          Comment

          • dansmith65
            Administrator
            • Aug 2017
            • 138
            • Kootenays, BC , Canada

            #6
            Thanks for the feedback. Good to know why Seal-All isn't a good fit here, and what it is a good fit for. I've got some 3M weatherstripping glue on it's way to me now.

            While I'm at it, I think I'm going to soften the velocity stacks via a Wintergreen/Alcohol soak.
            80 SG Canada

            Comment

            • Geezer
              XS-XJ Guru
              • May 2003
              • 2985
              • Willamina, Oregon 97229

              #7
              The snorkel is only there to quiet the intake roar. Most people don't notice a difference if it's left off...

              Tony
              Hi my name is Tony and I'm a bikeoholic.

              The old gray biker ain't what he used to be.

              Comment

              • Mathh
                XSive Maximus
                • Nov 2006
                • 662
                • Beek, Netherlands

                #8
                Originally posted by Geezer
                The snorkel is only there to quiet the intake roar. Most people don't notice a difference if it's left off...

                Tony
                The snorkel is there to suck air where there is the least turbulance: under the seat. I know the European 78 models had an additional foam box like dampener added to the snorkel that fitted in the existing room under the seat. That was indeed added to quiet the intake noise. Yamaha stopped using it after that first year.
                XS1100 3X0 '82 restomod, 2H9 '78 chain drive racer, 3H3 '79 customized.
                MV Agusta Brutale 910R '06.
                Triumph 1200 Speed Trophy '91, Triumph 1200 '93.
                Z1 '73 restomod, Z1A '74 yellow/green, KZ900 A4 '76 green.
                Yamaha MT-09 Tracer '15 grey.
                Kawasaki Z1300 DFI '84 modified, red.

                Comment

                • TopCatGr58
                  Administrator
                  • Jul 2002
                  • 12650
                  • Portsmouth, Va.

                  #9
                  Well, I'm not so sure about the need for less turbulent air into the snorkel as much as possibly a bit cooler from back there vs RIGHT BEHIND the engine. Also stays dryer in the rain. Dan, see those long velocity stack intake tubes inside the airbox that attach to the carbs, they are what helps to straighten out the air flow going into the carb throats neutralizing turbulence there.

                  T.C.
                  T. C. Gresham
                  81SH "Godzilla" . . .1179cc super-rat.
                  79SF "The Teacher" . . .basket case!
                  History shows again and again,
                  How nature points out the folly of men!

                  Comment

                  • Mathh
                    XSive Maximus
                    • Nov 2006
                    • 662
                    • Beek, Netherlands

                    #10
                    Yamaha themselves call it : 2h71443101 Silencer, Air Cleaner.... so, obviously I guess I'm wrong
                    XS1100 3X0 '82 restomod, 2H9 '78 chain drive racer, 3H3 '79 customized.
                    MV Agusta Brutale 910R '06.
                    Triumph 1200 Speed Trophy '91, Triumph 1200 '93.
                    Z1 '73 restomod, Z1A '74 yellow/green, KZ900 A4 '76 green.
                    Yamaha MT-09 Tracer '15 grey.
                    Kawasaki Z1300 DFI '84 modified, red.

                    Comment

                    • motoman
                      Master of XSology
                      • Aug 2005
                      • 8413
                      • Grand Junction, Colorado

                      #11
                      Good to see you still drop in on occasion Mathh!
                      81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

                      Comment

                      • skids
                        XS-XJ Super Guru
                        • Jul 2002
                        • 5046
                        • Florissant, CO, USA

                        #12
                        I would think that the snorkel has an effect on carburation, just as individual filters do (but to a different extent).
                        Skids (Sid Hansen)

                        Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.

                        Comment

                        • motoman
                          Master of XSology
                          • Aug 2005
                          • 8413
                          • Grand Junction, Colorado

                          #13
                          Originally posted by skids
                          I would think that the snorkel has an effect on carburation, just as individual filters do (but to a different extent).
                          True, to a certain extent. Individual filter pods DO affect vacuum slide/metering rod location based on vacuum draw, when and how much. IMO, the snorkel possibly could affect air flow, and work similar to a velocity stack.
                          81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

                          Comment

                          • dansmith65
                            Administrator
                            • Aug 2017
                            • 138
                            • Kootenays, BC , Canada

                            #14
                            I case anyone is interested in the potential impact of airflow in this tube, here's a picture of each intake side of the engine: (in order from 1-4)

                            I'm new to this, but my take is that #2 is running leaner than the others. I've only got carb #4 apart so far, so I'm not sure if the carb is causing this, or what, just yet.




                            80 SG Canada

                            Comment

                            • DiverRay
                              Moderator
                              • Nov 2004
                              • 7600
                              • Star, IDAHO

                              #15
                              Do NOT pay attention to the engine until it's been run awhile WITH the valve lash properly set. You had valves WAY too tight, and that will cause problems with running, and the way things look.
                              I don't know how far down you want to take it, but I would guess the valve seals will be leaking soon, just from age. If you have time search this site for hints on replacing seals without removing the head. I'm pretty sure one or two owners have done it.
                              If not, it's cheaper to buy an overhaul gasket set and use what you need to pull the head and replace seals.
                              Ray Matteis
                              KE6NHG
                              XS1100 E '78 (winter project)
                              XS1100 SF Bob Jones worked on it!

                              Comment

                              Working...