1. Some members were not receiving emails sent from XJbikes.com. For example: "Forgot your password?" function to reset your password would not send email to some members. I believe this has been resolved now. Please use "Contact Us" form (see page footer link) if you still have email issues. SnoSheriff

    Hello Guest. You have limited privileges and you can't "SEARCH" the forums. Please "Log In" or "Sign Up" for additional functionality. Click HERE to proceed.

carb vacuum hoses. Need help experts

Discussion in 'XJ Technical Chat' started by tsmith, Sep 15, 2010.

  1. tsmith

    tsmith Member

    Messages:
    74
    Likes Received:
    0
    Trophy Points:
    6
    My bike is a 82 yamaha maxim 750. i have a gasket between the engine and the boot that the carbs rest in go bad. so im replacing it. But it got me thinking. On the boot i took off there is a vacuum tube that runs to the petcock on the tank. On the other three boots are black tubes that stick up a few inches. They have been plugged with screws since i got the bike. So my question is experts, should the other three tubes that look to be cut go to something, should the just be kept plugged, or unplugged? can put a picture up if needed.
     
    tsmith, Sep 15, 2010
    #1
  2. MiCarl

    MiCarl Active Member

    Messages:
    4,373
    Likes Received:
    23
    Trophy Points:
    38
    Location:
    Livonia, MI (Metro Detroit)
    One goes to the petcock for the vacuum operated fuel valve. The other three should be plugged.

    Ditch the hoses and screws though. The auto parts stores have vacuum caps you can put on the other three nipples. Way less likely to leak than screws in hose.
     
    MiCarl, Sep 15, 2010
    #2
  3. markie

    markie Member

    Messages:
    975
    Likes Received:
    5
    Trophy Points:
    18
    Location:
    Suffolk, England
    They should be plugged. They should actually have a blank cap on them and are removed to fit a vacuum gauge to balance the carburettors.
    The line to the carb boot operates the vacuum fuel tap.

    D'Oh! Need to learn to type faster!!!
     
    markie, Sep 15, 2010
    #3
  4. tsmith

    tsmith Member

    Messages:
    74
    Likes Received:
    0
    Trophy Points:
    6
    Alright thanks guys. ill pick up some caps from the shop.
     
    tsmith, Sep 15, 2010
    #4
  5. RickCoMatic

    RickCoMatic Well-Known Member

    Messages:
    13,843
    Likes Received:
    66
    Trophy Points:
    48
    Location:
    Massachusetts, Billerica
    AutoZone has a Hanging Blister Pack pf "Assorted Vacuum Plugs"

    You get enough to do the Carbs and Cap your Brake Bleeders.

    There's even a Longer one that you can slip on the Rear Brake Threaded Rod.
     
    RickCoMatic, Sep 15, 2010
    #5

Share This Page