Need advise of 03 kfx 400

Need some advise pls. Couldn't get the quad to start put a new cdi on it fired right up rode for about a week, now it starts just fine but will only idle for a few minutes then die, but will fire right back up...now it's running a little rough I rode it for about an hour and it started missing out when I even touched the throttle. I cleaned the carbs and cleaned the plug rechared the k&n air filter, still fired right up but same thing, it won't stay idleing and misses out and wants to die when I give it gas. It seems like it's getting too much gas or not enough not sure, or possibly a vacuum issue. Any suggestions

Check for leeks in the lines and carb. Take ether or carb cleaner and spray it all over the carbs. If the rpms jumo when you spray it. You have a leak. Or you didn't clean it well enough. Take both carbs back out and run a thin wire through the jets and any other passages. Also blown out passage with air just make sure you don't blow air into the air cut off and blow it out.

Sent from my XT1585 using Tapatalk