Announcement

Collapse
No announcement yet.

vacuum seal o-rings in carbs

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • vacuum seal o-rings in carbs

    I'm getting some new parts for my carbies so my bike rides super-awesome, but to order them I had to get a serial number from the needle in the top of the #1 carburetor. As a result this cylinder no longer fires.

    After pulling apart #3 to see what I did wrong I noticed x2 things:

    The vacuum seal o-ring is missing.

    The rubber diaphram at the top of the carb has a tiny hole.

    Would either of these things stop it working?

    Its going to be sunny on Thursday & I am well overdue for a ride, but it seems I might miss out.

    Any advice is greatly appreciated.
    Whatcha gonna do? Rap is not afraid of you
    Beat is for Sonny Bono, beat is for Yoko Ono

  • #2
    i would think that that carb may not work 100%

    you could put a spot of silicon over the hole just to see if it improves the performance

    just an idea

    Comment


    • #3
      If the diaphram leaks the carb will not work properly. It needs the seal to lift the carb slide. I had a BMW twin a hole in the diaphram caused that cylinder to run very very weak.

      The BMWs had a big Bing vacuum carb and I found that the diaphrams from old SU carbs (used in Minis etc) were the same and easy to get locally. I bought them from Odin Autos in Balcatta, but that was years ago.

      Comment


      • #4
        I got some silicon from Malz and filled the hole. I let it set over night, then put the diaphram back on and she has never run sweeter in the 2 years I've had her.

        I'm thinking there may have been a small hole for some time...
        Whatcha gonna do? Rap is not afraid of you
        Beat is for Sonny Bono, beat is for Yoko Ono

        Comment


        • #5
          Originally posted by devolved View Post
          I got some silicon from Malz and filled the hole. I let it set over night, then put the diaphram back on and she has never run sweeter in the 2 years I've had her.

          I'm thinking there may have been a small hole for some time...
          cheap fix and solved the problem

          now you can get pinnappled with the oem part and be confident it will solve the problem

          good luck

          Comment


          • #6
            Originally posted by AAA Super Roo Charters View Post
            cheap fix and solved the problem

            now you can get pinnappled with the oem part and be confident it will solve the problem

            good luck
            Yup...

            That's pretty much it.
            Whatcha gonna do? Rap is not afraid of you
            Beat is for Sonny Bono, beat is for Yoko Ono

            Comment

            Working...
            X