jetting WR426 the never ending topic help J.D.

1 reply to this topic
  • AhamayWR426

Posted March 03, 2001 - 05:43 PM


I have setup my bike with the following jetting. I however have not had a good day to ride and would like to know if I am wasting my time..

I have setup
175 main jet
45 slow jet
200 main air jet
EKN needle 4th clip
Air box top removed
Baja designs Vortip in exhaust.
o-2000 foot above sea level
wr timing

I understand I will never get to the "disable the accel pump" level but am looking for the best simple jetting. Because I will probably never be a racer.

Comments are appreciated (even abusive ones) :)

Thanks Andrew

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • James_Dean

Posted March 03, 2001 - 07:21 PM



Try a smaller main jet - #168 and 1 1/2 - 2 1/4 turns out on the pilot (fuel) screw.

This is close to the '01YZ426/YZ&WR250F jetting.

If you have any specific problems feel free to ask. :)



Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.