Post a picture up

 

It's under the plug lol

 

Ya, I finally got to messing with it cause I couldn't leave well enough alone and managed to pull the plug out reveiling the pilot screw. Looks like I gotta go get a "D" shaped tool now. LOL.

 

You can thank the Tree Huggers for that plug. But yes just screwing a self tapping screw into them and ripping the out settles that. Ooops we aren't supposed to say that.

 

i think i have this issue as well just picked up a brand new oem carb to rejet since mine had the slow jet broken off in side can any one else confirm this mine had what looks like a brass plug that has been drilled so you can't get it out without usen a reverse dill bit and i,m not sure wether this is the whole air/fuel screw or just a plug covering it...need help

 

Take a pick and see if you can poke a hole in it. I'm sure it is a thin plug. .. now that I've seen your carb

 

I hate those plugs, and if you guys get carbs with those just get rid of those plugs, ATVs dont have emissions LOL.

 

yeah we got her all squared away lol the plug is very deceiving compaired to the original flat head screw this one has the d shapped screw

 

Post up a picture of it.

 

I'd like to see it as well.

I didn't see a year, what year is the 400ex carb?

 

Carb is and oem fits 99-04

 

Huh, wonder then why when I went to the quad shop in town, the lady showed me some jets for a 400ex, and they were different, and I told her it was a 02 400ex carb on a 300ex bike.

The one's she showed me where pretty much like mine, but longer on the top part.

42-45 slow jets to up my current 40.

 

They should be fine