Jetting help

[NorthernRIDER]

Good day 2 stroke lovers just wondering if anyone has the same set up. 06 KX-250 pro-circuit works pipe and shorty silencer, boyesen reed cage. I am looking for some jetting specs if anyone has a similar set up let me know how you jetted your bike. It runs very good, starts first kick, plug is nice and brown but in the higher gears (4th and 5th) i get some engine detonation, crackling/pingy sound if you wish...please help