Help Asap!! Main Jet And Needle Setting On A '04 Yz 250~~~~

[dnchevyman]

Ok, my 2004 YZ 250 blew upin the dunes a while back. i sent the cylendar off to ALBA racing to get ported, just got it back. the guy at alba told me to go up 2 jet sizes and move the needle clip up at least 1 notch. when i took my carb apart it had a 68 jet in it! doesnt a 04 yz 350 come with a 70 or 72? and when i took my needle out the clip fell off!! i had extras, but i didnt notice what notch it was on! HELP! I put it on the 2nd line down from the top, does this sound ok to you guys????

bike has a moose air filter, fmf fatty pipe, yamaha works port job. main jet went from a 60 to a 78, set the needle at the 2nd grove from the top. Any ideas if this sounds right? :bang:

please help and thanks a ton!

 

[Chili]

Something is not adding up, the info I find for the stock 04 YZ250 jetting is 178 main, 50 Pilot with the needle in the 2nd position

 

[dnchevyman]

well, i changed the jet that you access by removing the plug in the float bowl. it was a 60, now is a 78. needle in the second position is 2nd from the top right?

 

[johnnyl]

2nd from the top on the needle is right, pilot is way off should be 50 stock im running a 48 on my 2003 yz250