Take a look at post #!9 in my thread called
2022 Templar X 250 build quality and assembly
in the pics and video section
(
https://www.chinariders.net/showthread.php?t=31046)
I had 45 pilot jet but switched to 42. It was too rich. 125 seems right for the main below 1500 feet above sea level. I am at about 800 feet.
one small washer is enough for the shim (~1mm).