Removing the choke? [Archive]

QuadManThrice

01-11-2006, 03:56 PM

I was reading somewhere (I believe it was on here somewhere) about removing the choke on the 400ex and about how it increased performance maybe? I was wondering how I would benefit from removing the choke? Is it worth doing?

and also, if i remove the choke will i have to re-jet my bike? Its currently jetted for an HMF slip-on with spark arrestor (which i would like to take out).

underpowered

01-11-2006, 04:48 PM

removing the choke will increase throttle response and and give you a little better power throughout the power range. if you look if the FAQ forum there is a thread on how to remove it.

as far as rejeting, go up to a 42 pilot. you may have to mess with the pilot as well.

tooanxiousii

01-11-2006, 05:08 PM

What jet do you have in there now ??? Pilot

QuadManThrice

01-11-2006, 05:42 PM

not sure at the moment.

its jetted for an HMF slip-on

QuadManThrice

01-12-2006, 05:54 PM

what should i use to cover the hole that removing the choke leaves? i cant tell what as used when looking at the instructions.

Chino886

01-12-2006, 06:12 PM

you can get them at the auto parts store, it is called a vacuum plug...and clamp...