Maintenance & Technical > KX500 Original

Help with Wiseco piston ??

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Friar-Tuck:

 It's O.K. GC,
  Motorrad is not the kind of guy to steer you in the wrong direction.  It is the replacement for the old design.
Here's the link to the discussion: http://www.kxriders.com/forums/index.php/topic,4409.0.html

You can offset some of the additional weight by cutting a window in the piston, this gets you almost 300 some odd degrees of intake. (If the engine can draw any more from the reeds)
 
  Tuck\o/ 

greencannon:
Ok, I get the jist of the new design, but dont understand why the window cut is not part of the new design.
 If you take a step foward with new design, why would you take a step back by keeping it heavier ??? seems everybody is modifying the new design out of the box....
I dont plan to cut window on new one. I don't have the means. I still dont see if anyone has run one without cutting the window and what results were.
Thanx again guys

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