Exceeds the performance of standard 2-stroke jetting. JD Jetting jet kit JDK005. the 2004-2007 KTM 250 EXC/MXC/XC/XC-W. the 2004-2007 KTM 300 EXC/MXC/XC/XC-W. You will get : 2 multi-taper needles, main jets and pilot jet.
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