400EX Airbox lid

[gg1919]

I am currently in the process of installing a LRD slip on and a K&N w/ Outerwears. I also have the Dyno Jet kit. But before I re-jet it I was wondering if running with the Air Box lid completely off is a good idea. I live in the desert, don't ride in the wet at all really, but it does get pretty dusty. I'm aware that it would require extra maintenance, and that's fine. I just want to make sure it won't damage my motor at all.

Any help would be great.

[gg1919]

Also, if anyone knows off hand the proper jetting for either lid or no lid, it would save me some time messing with it.

[GP400]

I don't like to clean my air filter after every ride so I bought an EHS Racing airbox lid. It keeps most all of the dust out & lets the engine breathe.

[St Louis 400ex]

i do not think it would hurt as long as you clean after every ride or if you can return your K&N still you could try a K&N power lid it is a filter lid that snaps right on to your stock box you can get them on ebay for a pretty good price

[honda_runner]

for no air lid, go up 2 main jet sizes, works great.

[torqen2k1]

So if you just run open air lid start with a 152main jet and you should be good.

[honda_runner]

Dude thats what i said