Help me tune my 24mm t5 g slide dellorto carb on my px200

anyone please help me tune my 24mm t5 g slide carb on my px200, im having problem in setting it up. i tried 118, 120, 125 and 130 main jet and it runs so bad. when you blip the throttle idle returns for a few seconds then its stays for a while in normal idle then it dies. please need advise, thanks in advance. cheers!

my px200 set up
-malossi 210cc match ported crankcase
-sip reworked head
-sip left hand pipe
-stock crankshaft
-reiforced clutch basket
-t5 4th gear