Maintenance & Technical > KX500 Original

interchangeable jugs?

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altwosmoke88:
This is what I'm wondering. I have a 87 kx500 I want to restore/ modernize. From what I've read 87 had 1 power valve, 88 2 and 89-04 had the 3. I'd like to modernize... somebody's gotta know or have tried this

umberto:
Somebody told me you can put a 3 power valve jug on an earlier bottom, but it takes a bit of modification.  Let me find the post.

umberto:
Here's that thread:

http://www.kxriders.com/forums/index.php/topic,14886.0.html

motopunk:
alexander, the easiest way you can go is to find an 89-2004 crank case .. put your 87 transmission and crank in and the 93 cylinder on top and it is done.  8-)

the 86-2004 clutch cover has only one diference in all the years: the black color 86-87 ... an 88 bottom end has the exactly same inlets like the 89-2004, except the shorter second gear and its missing the 3rd hole for the 89-2004 kips.. 

alexander-vmann:

--- Quote from: motopunk on July 25, 2015, 06:20:00 AM ---alexander, the easiest way you can go is to find an 89-2004 crank case .. put your 87 transmission and crank in and the 93 cylinder on top and it is done.  8-)

the 86-2004 clutch cover has only one diference in all the years: the black color 86-87 ... an 88 bottom end has the exactly same inlets like the 89-2004, except the shorter second gear and its missing the 3rd hole for the 89-2004 kips.. 

--- End quote ---

i think the easiest (but not cheapest) way for me would be to send all the 93 parts i have to a workshop and have them rebuild it and find missing parts etc, at least that way i can have two engines  :-D

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