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Hey guys i am having issues with idle on my 400 ex. My altitude is 2100 ft. Have a fmf slip on exhaust and k&n air filter with cover on. Dynojet kit said for my altitude to use 146 main jet and it came with a 42 pilot. Im 2 screws out on the pilot screw right now going to try to back it out to 3 but im having my doubts. Fuel needle is on notch 3 which was recommended. My only other thing is the pilot may have a clog, thought i cleaned it but maybe not good enough? Should i put a bigger main jet? But the problem isnt full throttle its at idle it basically stalls out. Any suggestions?
 

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Take the pilot jet out and see if you can see through it. Either get a new one or use a small wire like from a wire brush to slide through it to open it up
 
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