jetting

[stifler7998]

I need to know what jet to use on a 400 with an open top UM airbox, K&N filter power bomb head pipe and a white brothers slip on

[94F450SD]

the jets that work for your bike.i could live next to you and jet mine and it will run pefrect.now take your bike with the same mods and use the same jets i used and yours could run like crap.you need to try your own jetting and find what works good on your bike.

[pit/wood]

And thats just the way it is.Get the kit,read the instructions and follow them.piece o cake.

[python952]

yo buddy, you dont need to jet, 400s are fuel injected... ride it right now, forgot to tell ya!

Originally posted by python952
yo buddy, you dont need to jet, 400s are fuel injected... ride it right now, forgot to tell ya!

no there not, and yes u do need to rejet...ur gonna run like crap if u dont

[desertrats]

I dont know, maybe I am missing something but what king of 400 are you asking about? 400ex z400 etc?

[stifler7998]

ex, buddy

[94F450SD]

http://www.atvriders.com/articles/jetting.html

[94F450SD]

http://www.dirtwheelsmag.com/ME2/dirmod.asp?sid=3657A54ECEB84907A7DCC1864E4585F6&nm=Features&type=news&mod=News&mid=9A02E3B96F2A415ABC72CB5F516B4C10&tier=3&nid=D5C3E06A3FCA4D02801D7B8D59B61067

[desertrats]

Originally posted by stifler7998
ex, buddy

lol sorry thats what I though just makin sure



yeah whoever said 400ex is fuel injected, na uh, no fuel injection, dude, lol :huh

[stifler7998]

thanks for those sites

[QuadRacer18]

Yo brian, let me know when you take it for a spin and see what changes you still gotta make to it, then get the jet and ill put it in for ya and fine tune it if you need to adjust needle clip positions etc.

Josh

[stifler7998]

don't worry about the kid sayin ex's are fuel injected, he lives down the road from me