Jump to content
Sign in to follow this  

JD jetting kit - "02 WR250F

Recommended Posts

I am in Houston, 213', 90+ degrees and high humidity. I installed the JD kit. Went with blue needle-5th clip and 185 MJ. The engine was "splattering" during roll-on which I assumed was rich. Also it "splatters" bad at WOT. I moved the clip to #3 position and it fixed the roll-on problem but not the WOT problem. Should I now reduce the MJ to say 180 and will this cause my clip position to change? Thanks for your input.

Share this post


Link to post
Share on other sites

Yes, lower the main jet. This change will have little effect at lower throttle settings.

If you have any further low speed jetting richness, switch to the red marked needle in the middle clip position.

The combination of humidity and 90F temperature increases richness.

Thanks,

James

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×