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.

Yz125 adjusting the powervalve.

Discussion in 'Other Motorcycles' started by tyler93, Feb 22, 2009.

  1. tyler93

    tyler93 Member

    Messages:
    183
    Likes Received:
    0
    Trophy Points:
    16
    Location:
    methuen
    I THINK.. I have to adjust my power valve on my yz125. I just got finished rebuilding the top end and have the powervalve cover off and have been trying to put it back to where it was when i took the linkage off. I dont know if it was right when the bike was running but its not right now.

    Correct me if im wrong but. When the engine is off. The power valve is closed.

    My engine is off and when i look threw the exhuast port Its not closed its actually almost all the way open.

    The reason i havnt touched it yet is because im unsure if its right or not and i dont want to go screwing around with it as its already complicated enough just putting it back together my manual is completly useless when it comes to this it seems.
     
    tyler93, Feb 22, 2009
    #1
  2. turtlemann14

    turtlemann14 Member

    Messages:
    145
    Likes Received:
    0
    Trophy Points:
    16
    i believe it should be closed at idle or not running
    and when its full throttle its open

    since this is a xj sight you may want to try mototips.com (dirt bike forum)
     
    turtlemann14, Feb 22, 2009
    #2
  3. Zookie400

    Zookie400 Active Member

    Messages:
    1,046
    Likes Received:
    3
    Trophy Points:
    38
    Location:
    Connecticut
    its been a long time since i saw the power valves on a yz.....what year is it?

    you can go to bike bandit and look at the oem parts section for exploded views...it may help you.

    it should be closed when the engine is off
     
    Zookie400, Feb 22, 2009
    #3

Share This Page