'02 KTM 250 sx jetting ???

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May 7, 2002
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#1
I bought this bike recently,it had stock jetting and the plug was pretty black/oily.I ride at sea level,pump gas with Motul 800 at 44-1 and the temps are currently 70 to 80 degrees.What is recommended? What are some of these needles like DEK and Sudco? Would a move to the NOZF(I think) be better than the stock needle? What is the R 1470 D ? Good,bad,other? Thanks.