Help 09 CRF450X running rough mid to full throttle.
  • Yoshi
    Posts:4
    Joined:Thu Feb 05, 2015 9:03 pm
    Help 09 CRF450X running rough mid to full throttle.

    by Yoshi » Sun Feb 15, 2015 8:30 pm

    Just got back on a bike after 7 years and had a blast today!
    My bike originated from CA so i have just installed a smog block off kit, cut the air box, JD jetting kit. 165 main, red needle 4th clip from top, 50 leak. Please note i made no adjustment to the fuel screw because didn't have tool to adjust today but have just ordered adjustable fuel screw and D socket to remove original screw.
    At low rpm bike pulls very strong, but is just not running strong at mid to higher revs. :?:
  • User avatar
    crfsonly
    Owner
    Posts:9651
    Joined:Thu Apr 01, 2004 3:45 pm

    by crfsonly » Thu Feb 19, 2015 1:39 pm

    Look at the main jet clean or replace. Float bowl could be an issue too. Check floating valve seal on the slide as well.

    Ken
    OEM Parts for Honda - Yamaha - Suzuki - Kawasaki: http://yeltrik.com
    _________________
    CRF Parts and Accessories: http://crfsonly.com

Who is online

Users browsing this forum: No registered users and 3 guests