I have a 2007 kx250f a few weeks ago i had a hanging idle problem which ended up being my pilot screw the tip was broken off during troubleshooting i cleaned the whole carb and sprayed cleaner through every circuit. I replaced the screw and the bike ran fine. I haven't touched it in a few weeks today i go to start it up its runs like complete shit only starts using the choke and hot start. It wont run without the choke on when you turn it off it just pops sputters and dies but runs fine with the choke. What the hell happened i haven't touched anything since i fixed the screw problem a few weeks ago? Tomorrow im going to replace the pilot jet and clean out the circuit again hopefully this will help? I've been having nothing but problems with this bike which is a real bummer since ive only owned it for a few months. Any Thoughts would be appreciated thanks.