Maintenance & Technical > KX500 Original

Rebuild Top end?

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c-152:
I put a new set of rings in my 92 kx500 last winter.  According to the previous owner, it had never been rebuilt.  Everything was in good shape and there was no need for a piston.  The only issue was the powervalve needed cleaned from years of running 32 - 1.  I decided that was proof enough to bump up to 40 - 1.  I plan on rebuilding it every year because I am going to race it.  That actually might be overkill but it is so cheap and easy to do, it is worth it.

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