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View Full Version : JD jetting


bferg911
02-08-2009, 04:25 PM
Has anybody on here used JD jet kits for their 450. I have it on my 525xc and love it. I just picked up a yfz450 for my wife and am just looking for my best options. I already have a Ron woods complete exhaust and filter mod,Cam mod. Jetting is way off. I picked it up with these mods and maybe 20 hours on it. Any help would be appreciated.
daddio
02-09-2009, 06:42 AM
They are ok, but it might not come with a big enough main jet.
Do a little research to find the main and pilot you need, then just buy a couple jets in that range and an NCVQ (YZ450) needle and save some cashola.
bferg911
02-09-2009, 06:43 PM
Right on man I do appreciate it.
bferg911
02-16-2009, 12:57 AM
I was so happy with the way the JD kit worked on my KTM that I figured I would give it a try. Sure enough it worked like a champ. Awesome throttle response and flat out rips. Might have to turn in the throttle stop for the wife. He he. I do appreciate the input though.