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Thread: akward idle

  1. #1
    Join Date
    May 2005
    Posts
    6

    akward idle

    After I start up my 05 250ex and it gets up to operating temp, the idle drastically increases. Can anybody suggest a fix? maybe a pilot jet or something?? Thanks

  2. #2
    Join Date
    Feb 2007
    Location
    southeastern Mass
    Posts
    1,575
    on one of my friends bikes once the bike is warm the bike gets substantilly louder and he changes the idle screw on the carb back down
    '07 250ex
    20 inch razr tires
    ITP C-series sport wheel

    '03 kawasaki bayou 250- Cleaned up
    '04 yamaha breeze-sisters

  3. #3
    Join Date
    Jul 2002
    Location
    Jackson NJ/Daytona Beach FL (school)
    Posts
    1,216
    I dont really understand the question. The bike will idle lower once warm.

    if the idle is to the point where it sounds like its skipping and barely holding its idle, then the idle screw needs to be adjusted.

    if the idle has a lope, your fuel screw needs to be adjusted. with a stock cam the idle should be very smooth at idle.

    if the idle is low one second and high the next, you should check for air leaks.
    Respect is earned, never given.

    2002 250ex- SOLD.

    Creator of the 250EX Performance FAQ. For 250ex headwork and various porting , please email me at flyinryanporting@gmail.com

  4. #4
    Join Date
    May 2005
    Posts
    6
    its as if its running with the choke on.

    after it you start it up and run in for 2 minutes, you come to a stop and the bike increases revs noticibly. and like it was mentioned early, we can back out the idle but that doesn't seem like the appropriate fix.

  5. #5
    Join Date
    Oct 2002
    Location
    worst town I've ever lived in... Spencer,OH
    Posts
    4,186
    Make sure your throttle cable and choke cable are adjusted properly first. If that isn't the problem try adjusting the fuel screw (small brass screw just in front of the carb bowl that points straight down). I would start at about 1.5-2 turns out from lightly seated and adjust for the highest idle possible and then back off the screw slightly(about 1/8- 1/4 turn). **Make sure you get the engine up to full operating temp before adjusting the fuel screw.

    Then you can adjust for proper idle rpm's
    I am now quadless...

  6. #6
    Join Date
    May 2005
    Posts
    6
    sounds good, thanks for everyone for giving good suggestions!

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