2001 CR250 Jetting chart ?

[Beau 88]

Wanted to ask if anyone had a jetting chart with all the info including ambient temps, altitudes and jets used according to this. I have an 01' CR250 , Mikuni TMX 11A carb. 38mm . I have the book but it's a clymer manual and doesn't have a chart like the Honda service manual , it only tells what it leaves the factory with. PILOT 35 MAIN 420 with a needle size of 6BEHI-73 . I had to sacrifice my good carb and rejet for my sons CR125 ( running awesome now )  and i got stuck with the TMX . I tried it on the stand jetted how it is with fair bottom power 30 pilot No mid power 65 needle and lean popping ( cutting out, stumbling )  3/4 throttle and up  400 main jet. Thinking i'm rich in the middle and lean on top ? Anyway off to order more brass . Thanks guys. 

[wforic]

Check your PM...

-Eric

[Beau 88]

Thanks bud, almost have it dialed in now . 30 on the pilot 73 needle and 410 main Braaap ! Really like to ride tomorrow .  ?

[greg-15]

Make sure you get the needle jet right. My 01' runs a S-8 Needle Jet. Stock is S-9 and kind of rich. Most owners on this site run a S-7.

[magpie5]

I'm not really sure what it is but I got it from here when I got my 00' pwk https://www.thumpertalk.com/topic/939711-anyone-who-needs-the-oem-2000-2001-cr250-service-manual/

I had similar question for 2000 CR250 awhile back.  The link provides download for the manual.  Page 4-8

 

https://www.thumpertalk.com/topic/939711-anyone-who-needs-the-oem-2000-2001-cr250-service-manual/

https://www.thumpertalk.com/topic/1080748-jetting-specs-2000-cr250/

Edited May 11, 2014 by magpie5

[Beau 88]

Make sure you get the needle jet right. My 01' runs a S-8 Needle Jet. Stock is S-9 and kind of rich. Most owners on this site run a S-7.

Ordered the S7 should be here monday with a new coil,  you running the stock needle ?