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    Small rubber vacuum caps

    Anyone know where to find the small rubber vacuum caps for the VM26s vacuum ports? PartZilla and Ron Ayers search found nothing in the schematics for them. Right now I'm running some cobbled together solution to keep them sealed up but would like to find an OEM or OEMish source.

    Thanks for any help.

    #2
    There is only 1 vacuum port on VM26's and that connects to the fuel tap (petcock). The other 2 ports are float bowl vents and should NOT be blocked off.
    1978 GS1085.

    Just remember, an opinion without 3.14 is just an onion!

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      #3
      Why would you want to seal up a vacuum port?

      Note that there is only ONE vacuum cap, that will be on carb #3. The ports on carbs 2 and 4 are VENT ports and should NOT be capped.

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        #4
        You can get caps at your local auto parts store
        1978 GS 1000 (since new)
        1979 GS 1000 (The Fridge, superbike replica project)
        1978 GS 1000 (parts)
        1981 GS 850 (anyone want a project?)
        1981 GPZ 550 (backroad screamer)
        1970 450 Mk IIID (THUMP!)
        2007 DRz 400S
        1999 ATK 490ES
        1994 DR 350SES

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          #5
          That may explain some of the funky running issue then hahaha. I thought they were vacuum ports for synching. OK so I'll unplugs the 2 and 4 ports but the 3 port I'll leave plugged because I replaced the factory vacuum petcock with a pingel a few years ago.

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