Petcock Vacuum Bypass

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  • MPittma100
    XS-XJ Guru
    • Aug 2011
    • 2359
    • Atlanta, GA.
    #1

    Petcock Vacuum Bypass

    I ran across this on J&P Cycles. Has anyone used this before?

    http://www.jpcycles.com/instructions/pdf/720-413.pdf
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    Mike
    Tags: None
    • rdmcguy
      XSive Maximus
      • Jul 2013
      • 515
      • Denver, Colo.
      #2
      vacuum

      It seems to me that I/you/we could just remove or modify the diaphragm and block off the vacuum port and save the expense of buying theirs not to mention waiting for it to arrive.
      78standard,79 & 80 Specials; 2 x 650 Maxims; 4 x RD350's; yz450; 2 x Honda tlr's;2x jt1 mini.

        Comment

        • crazy steve
          XS-XJ Guru MODERATOR
          • Jan 2009
          • 7932
          • Beautiful outer Yelm, WA
          #3
          Those are for converting the later Harley vacuum petcocks...
          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...

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