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.

No muffler, no back pressure?

Discussion in 'XJ Modifications' started by ScarySnowflakes, May 15, 2017.

Tags:
  1. ScarySnowflakes

    ScarySnowflakes New Member

    Messages:
    10
    Likes Received:
    1
    Trophy Points:
    3
    Location:
    New Jersey
    I'm pretty new to this forum as I just got an 82' XJ750 so just bare with me. The question is, if I remove the mufflers will I lose back pressure and need to rejet or something else?
     
    ScarySnowflakes, May 15, 2017
    #1
  2. ScarySnowflakes

    ScarySnowflakes New Member

    Messages:
    10
    Likes Received:
    1
    Trophy Points:
    3
    Location:
    New Jersey
    Now I've looked around and there are so many different answers and I thing that's because the question is unclear, so let me make it as clear as possible. Minus new blinkers my bike is stock. I have the stock airbox with stock filter, stock carbs, and stock exhaust. What I have done is removed ONLY the mufflers.
     
    ScarySnowflakes, May 15, 2017
    #2
  3. ScarySnowflakes

    ScarySnowflakes New Member

    Messages:
    10
    Likes Received:
    1
    Trophy Points:
    3
    Location:
    New Jersey
    I still have the H-pipe/collector under the bike. What I want to do now is put pipes from the H-pipe down the sides of the bike, in the same position as the mufflers. This is not open headers or straight pipe because the H-pipe is still there. With all that said am I still going to need to rejet? Would adding baffles/silencers inside the two pipes help? Thanks.
     
    ScarySnowflakes, May 15, 2017
    #3
  4. XJ550H

    XJ550H Well-Known Member Premium Member

    Messages:
    13,199
    Likes Received:
    3,861
    Trophy Points:
    113
    Location:
    Great North Woods
    rejetting info is in this thread
    The Information Overload Hour

    carb clean
    IN THE CHURCH OF CLEAN

    the only way you will really know if you need to rejet is to do plug chops.
    (look at the spark plugs).



    +2 main jet sizes for no muffler (open headers) looks like the advice it is giving as a good place to start
     
    XJ550H, May 15, 2017
    #4

Share This Page