Newbie!! 250x jetting Q
  • mxersraz
    Posts:147
    Joined:Sat Mar 07, 2009 10:58 am
    Newbie!! 250x jetting Q

    by mxersraz » Sat Mar 07, 2009 11:27 am

    Hallo from Greece!!! newbie here!, nice site, i'm greatfull i found it!!
    I own a beawtifull 05 250x with the baffle removed, airbox cut, backfire screen removed, after market high performance air filter and pink wire mod..
    i recently rejeted my carb as (no kit)
    150 main jet
    42 pilot jet
    air screw 2,5 turns out.
    Bike runs and starts just fine.
    My question is if it is nessesary to change my needle clip posission (from #3 to #4) ????? or i'm just fine with theese jets?
    if i do #4 does it influences the engine's reability-life time?? (except trial i also ride my bike every day in town so life/service-time is important to me..)

    i ride at sea leavel at 40-90 temperature
    Sorry for my english :oops: ..
    Thanks!!!!!
  • Asmith
    Posts:14381
    Joined:Mon Apr 10, 2006 7:52 am

    by Asmith » Sat Mar 07, 2009 11:54 am

    Welcome to the site!!

    Greece is a most beautiful and interesting country, full of history. I lived in Glyfada as a child, I'll never forget my time there.

    Moving the needle to the 4th clip will richen the mix at low throttle lifts. It will not adversely affect the reliability or longevity of the engine. It may even increase it as it will run slightly cooler.
  • mxersraz
    Posts:147
    Joined:Sat Mar 07, 2009 10:58 am

    by mxersraz » Sun Mar 08, 2009 10:01 am

    Thanks for the reply ~!! I'll proceed changing the possition at #4, hope it'll work fine..
    Greece is indeed a very beautifull country with nice trials too.. Waiting you in Crete for vacation and trial riding!!
  • hookupman
    Posts:64
    Joined:Wed Jan 16, 2008 12:14 pm

    by hookupman » Sun Mar 22, 2009 9:36 am

    I have an o5 and with no pink wire mod and screen in. Other than that it was the same. When I rejetted with JD I went to a 158. I would think you would be be able to go to a 158 as well. With the screen out maybe even a 160.
    2005 250x air box opened, twin air, backfire screen in, baffle out, 2005 R-cam, JD 165/42, KW SS Intake
    KLX 110
  • mxersraz
    Posts:147
    Joined:Sat Mar 07, 2009 10:58 am

    by mxersraz » Sun Mar 22, 2009 11:02 am

    "I have an o5 and with no pink wire mod and screen in. Other than that it was the same. When I rejetted with JD I went to a 158. I would think you would be be able to go to a 158 as well. With the screen out maybe even a 160."

    Allready istalled it.!
    http://www.crfsonly.com/forum/viewtopic.php?t=25846
    JD kit is just awesome!!
    Thaks!!
    Back to the nature!! 450x

Who is online

Users browsing this forum: No registered users and 6 guests