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Petcock vacuum line

Discussion in 'XJ Technical Chat' started by Plug, Aug 14, 2017.

  1. Plug

    Plug Active Member

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    Quick question for you gentlemen, 750 Seca, does the vacuum line connect to carb 2 or carb 3? It was attached to # 3........but on the 550 it was on #2...... Which is the proper on for the 750?
     
    Plug, Aug 14, 2017
    #1
  2. Chitwood

    Chitwood Well-Known Member

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    It will receive vacuum no matter which carb boot it's hooked to, I usually hook them to the carb that the throttle cable hooks to, which I believe is carb #3. Not sure if that's 100% correct but has worked just fine for me.
     
    Chitwood, Aug 14, 2017
    #2
  3. XJ550H

    XJ550H Well-Known Member Premium Member

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    Last edited: Aug 14, 2017
    XJ550H, Aug 14, 2017
    #3
  4. Toomanybikes

    Toomanybikes Well-Known Member

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    Yea but parts are cheaper at
    yamahapartsnation.com
     
    Toomanybikes, Aug 15, 2017
    #4
  5. XJ550H

    XJ550H Well-Known Member Premium Member

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    I just use it for the pictures and cross fit.
     
    XJ550H, Aug 15, 2017
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  6. Plug

    Plug Active Member

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    Yes Sir, I do have the fuel line holder still on carb hat 1.
     
    Plug, Aug 15, 2017
    #6

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