JD Leak Jet

I have just purchased a JD Jitting kit , plus leak jet kit . I am not sure what leak jet i should put in , or even if i need to. I have had some low end bog on my crf 250r 06 and i am trying to tune it in. I have put in a

180 main

45 pilot

Fuel Screw 1 out

Blue needle on 5th from top

300 ft

between 0 - 5 Deg C ( 32 - 41 F )

Any info would be appreciated , as i do not know very much about the carb.


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