Stalling while deceleration

[ArctiCat90]

Hello I just installed a K&N airfilter on my z400, I bumped the main jet to a 145 and am runnig a stock pilot. with an hmf slip-on. When the quad decelerates it dies out unless given throttle. An input will be very helpful. Thanks in advance

[cataway]

i would try turning the fuel screw out a turn ,if no good results after 3 1/2 turns out from bottom ,then go to a 25pj

[ArctiCat90]

Thanks for the help. I put the screw out a little before 3 turns and it runs very smooth