Maintenance & Technical > KX500 Original

86 kx500 jetting 39 pwk with shaved head/cylinder thx

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Friar-Tuck:
  Yes the needle & slide are probably from the KTM 125.  They can be replaced, the PJ/PWK needles and jets are interchangeable.  PWK slide only fits PWK  There is a number on the bottom of the slide that will tell you what "cut out"
  it is.   Most guys run a #7


--- Quote ---breaks up a little off idle then kicks in pretty strong in the mid..
--- End quote ---
  Looking either at the needle and /or the powervalve working properly?
The needle has a # stamped around the top 1/4  of it's body
 

--- Quote --- Seems to die down a little at wot
--- End quote ---
Main and possibly PV not opening all the way.

  Tuck\o/

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