Jump to content
Sign in to follow this  

2001 wr290f jetting help

Recommended Posts

hi all just rebuilt my 2001 wr250f with a fmf powerbomb header powercore 4 silencer and a athena 290 kit the jetting is spot on above 1/4 throttle i just cant seem to get it right from idle to a 1/4 the exhaust is glowing within in seconds and it wont idle unless i turn the tickover right up high got the fuel screw at nearly 3 turns out and its getting better so im thinking a bigger pilot or leak jet? rang my local dealer today and he said leak jet not changeable on a 2001 anyone any ideas what else i can try? cant get a jd jet kit here in uk all jetting is on the idle circuit is stock apart from the fuel screw being nearly 3 turns out

cheers in advance ian

Share this post


Link to post
Share on other sites

I agree, sounds like bad/dirty pilot jet.

I would question the tid bit about your leak jet, I could swear they are changeable.

check out www.thumperfaq.com discussion about the accelerator pump circuit and the role of the leak jet....

Share this post


Link to post
Share on other sites

Thanks guys ill order same size an a few round it aswell just incase as it was fine before the rebuild.

Has anyone tried a boyesen quickshot 3 any good or just a useless gadget?

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  

×