400 EX Jetting - Please Help!

[biggiefougere]

:huh
I am having trouble with the jetting on my 2001 400ex.
Any help would be great.

K&N Air Filter
Full Hindle Exhuast
Bored once over
Motion Pro Twist Throttle

Has dyno jet kit but I am replacing everything stock to start from scratch. Any suggestions on size of pilot and main jets?

Thanks Biggie

It won't give up, It wants me dead, This god damn voice inside my head!

[gotahemi2004]

ive been talking to people what ive come to the conclusion they are recemending a 42 pilot and a 170-175 jet ad i have pretty much same mods as you

[biggiefougere]

Thanks,

I have been told to use jets directly from honda and that a 155 is what I should try.
I'll have try these out.
Anything else I should know about?

Biggie

[hondarider2006]

I would say around a Kehlin(stock jet type) 155-160. I think that 170-175 would be to rich. Also on the pilot jet, if yours is stock, I would reccomend going to a 42. Also removing your choke would be a good idea. And go about 2-2 1/2 turns out on the air/mixture screw.

[sickmojave]

Originally posted by hondarider2006
I would say around a Kehlin(stock jet type) 155-160.

;) :macho

[biggiefougere]

Thanks to all,

I will let you know how it goes.

Biggie

[hondamxerd]

DOES REMOVING THE CHOKE HELP ANYTHING, OR JUST MAKE IT HARDER TO START? JUST WANDERING, IF IT WOULD REALLY HELP I WILL TRY IT

[biggiefougere]

I'm not sure.
I was wondering the same thing.
Anybody???????

Biggie