Kx125 2003 Poor Running Low Rpm Help!!

I Have A Kx125 2003,will Not Idle And The First 1/5 Throttle Runs Very Rich,running Standard Jets And Needle Clip 3rd From Bottom.just Seems To Bog Down At Low Rpm,i Have All So Replaced Needle Valve & New Piston.feels Like The Chokes On All The Time .this Is Driving Me Nut!!!!!!!!!!.

standard jets as in stock? how many turns out is your airscrew?

also pull your carb off and make sure your choke is seating properly.

have you looked in the carb? have you checked your reeds? top end good? good compression?

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