1. 2 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
    WR = 2st Enduro & CR = 2st Cross

250-500cc 09 WR250 jetting

Discussion in '2 Stroke' started by stretchrcr, May 4, 2010.

  1. stretchrcr Husqvarna
    AA Class

    Location:
    Orange County, CA
    I've had several WR250's and love them. From my 08 on back I've ran the jetting listed below and it was perfect. Never tried the Keihin conversion. I just picked up a new 09 and it has a slightly different carb. Still a 38 TMX, but it has a curved slide. The new bike came with very similar jetting to what I have run before. I haven't had too much time to experiment yet, but the new bike seems closer than previous models. Anyone have experience jetting the 09 bike? Curious what others have come up with.

    6DGY04-59 needle (clip 2nd from top) available from SUDCO part number 007-047
    380 main
    35 pilot
    3.0 slide (that should be what came in it)
    air screw 1.5 - 1.75 turns out.

    Thanks,
    Brent
  2. utopia Husqvarna
    AA Class

    Location:
    Jackson, WY
    Husqvarna Motorcycle:
    WR250, WXC125
    I'm interested in this too. I'll be picking up my new 09 WR250 today or tomorrow.
  3. PC. Husqvarna
    AA Class

    Location:
    Beaverton, OR
    Husqvarna Motorcycle:
    CR165 & CR144
    Other Motorcycles:
    KTM500
    Where are you riding at? That 380 main seems really lean unless you're riding up in the Piutes or Mammoth.
  4. stretchrcr Husqvarna
    AA Class

    Location:
    Orange County, CA
    I race District 37 Desert and GP events. Most are somewhere between 1000 and 3000 ft. So far the 380 main seems right. Plug is a nice dark golden brown. It seems a little lean in the middle. I just haven't had a chance to get it dialed yet.