Motorcycle Repair: 05 ninja 250, ninja 250, new bike

Question
This is a new bike (243 miles) and it won't start without starting fluid shot (must have choke off). Once it starts and warms up at 2000 rpm  it will run with choke slightly on. When choke is released it dies. Have removed carbs and cleaned jets twice, changed gas and inspected everything - it is new, looks new and this all started when it was stored for a year (with gas removed). The carbs look antiseptic clean - what should I try next?
Thanks

Answer
carbs may look clean but i can guarantee you i been doing this kind of work for 23 years 9 out of ten its yur jets that are dirty somewhere take them off and soak them in a good carb cleaner in a bucket you will notice a difference ok. if you need more help im her ok to help you . please leave feedback for me ok

mitch