att. 400ex owners

[user101]

i know this sounds dumbe but where is the air/fuel scew mixture screw on the carb. my 400 isnt runnin right. i think it is bad gas but dont know. i am runnin premium in it but it could ust be the gas station i by it from, (#$@!&^* arabs) lol:p ive checked the basics air filter, choke, gas tank(full). the temp has dropped about 10 degrees since the last time i rode it(last sunday). it kinda studders in 1,2,lil in 3, and 1/4 throttle in 4 and 5. it idles fine tho. please help

[user101]

cmon guys gals

[Big - D Racing]

I believe on the stock carb it's on the float bowl, towards the bottom. Replace your plug that should help too.

[holeshot19]

its on the botton neer where it slides in to the motor,turn it in to lean it out.just for kicks take the air box lid off and see if it clears up