Maintenance & Technical > KX500 Original

a newbi engine question.

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lance89:
Hey guys I'm new to this forum, but I need some help on a engine question.  I'm trying to build a custome road racer with a 95 KX500 engine in it.  My question is,  is there much difference in 1988-1995 engines? and if so can you give me some of the differences?  The rules for the class require 1990 and older engines unless the they are same. Lance

sandblaster:
Hello Lance and welcome to the forum.
The 88 uses a 2 exhaust valve set up as well as some other changes.
The 89-04 all use the 3 valve setup and only have minor differences in the magnito and shift shaft.
Everything else in the 89-04 is the same.
Other then the engine I'd numbers tou would be hard pressed to find any visual differences.
Keep us up to date on your progress..

lance89:
thank you for the info. That is exactly what I was looking for. I will try and start taking some pictures.  I'm concurned with vibration.  I am using a steel framed chassie to hopefully help this a little. Thanks again Lance

Pmcg:
A balanced crank should make a big difference in vibration.

sandblaster:

--- Quote from: Pmcg on November 06, 2013, 01:10:28 PM ---A balanced crank should make a big difference in vibration.

--- End quote ---

+1

Also, if you want to see the differences in the engine parts as well as the chassis parts check out this chart:
http://www.oem-cycle.com/KAWASAKIKX500BIKEID.shtml
Be sure to scroll way to the right...  :wink:

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