jchampion99 Posted March 28, 2010 i have an 04 yfz450 with dr.d slip on, kb motosports intake with k&n, hot cams, je 13.5:1 piston, 50/50 race fuel and 93 mix, 1000ft elevation, getting ready to order yz ncvq needle, right now it is jetted for the pipe witch is 172 main, stock pilot jet, stock needle on 5th clip, stock mixture srew setting, just wonering if some has about the same set up for a good starting point to rejet after i get the yz needle, or if any one can point me in the right derction thanks Share this post Link to post Share on other sites
T-Rex Posted April 6, 2010 168 to 170 main jet and a 45 pilot jet, thrid clip on the NVCQ needle. Share this post Link to post Share on other sites
jchampion99 Posted April 7, 2010 how many turns do think i should be on the fuel/air screw Share this post Link to post Share on other sites
