DT125R only run on choke

Hello all,

never used a forum for advice before but this bike is getting on my nerves

I have a dt125r 2003 I recently bought as a non runner, I rebuilt the engine all new seals and bearing and gaskets. The bike will run fine with the choke out but as soon as I take the choke off it won't tick over or even Rev! I have had the carb striped and cleaned (all fine). Reed block and reeds are fine. New piston and rings (barrel is fine) compression is good 

anyone had this problem before? 

Many infomation would be helpful 

thanks