Maintenance & Technical > KX500 Original

Whats the compatibal years

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Goat:
One part I'm surprised hasn't been mentioned is the shift shaft. In 95 they didn't neck it down for the shifter. The left it the same diameter and knurled it which requires a different shift lever than previous years. The new non necked shift shaft is less prone to breaking or bending. There is no other difference in the shafts so it will just fit.

I have broken a few of the pre 95 shafts and have had the upgraded one for 2 years and still straight and works excellent. I recommend doing it to all that tear into their cases for rebuild. Don't forget to buy a new shift lever though.

chrisxj:
well thanks for all the info boys but i found a few disapointing things since i was vin research i found out it was a 86 frame withan 85 motor so my qeustion has changed a bit. the guy said it was an 89 but obvious people lie all the time. But the most thing im disapointed is it is not a powervalve motor i got spoiled on powervalve motors i allways knew about when i was gonna hit the power band on this monster it goin to be a mystery when it will hit :-oscary if you ask me

Goat:
The 85 was a solid engine even though it didn't have power valves. It's getting very hard to find parts for the early year K5's but they are out there. It just takes some searching.

I have run into the same issue with someone saying they have one year and it turns out to be another. I now keep the vin ID list in my phone so I can identify a bike on the spot. Friend of mine drove 6 hours to pick up a 96 KX250 and when we got there I knew it was a 92. The guy didn't believe me until I pulled the vin ID up on my phone then he got pissed off and I talked him down on price because it wasn't what he said it was and we drove 6 hours. The engine was in pieces in a box. The cylinder was in bad shape and the crank was a paperweight. It sucks that ya can't trust anyone anymore.

sandblaster:

--- Quote from: Goat on August 31, 2011, 03:22:36 PM ---One part I'm surprised hasn't been mentioned is the shift shaft. In 95 they didn't neck it down for the shifter. The left it the same diameter and knurled it which requires a different shift lever than previous years. The new non necked shift shaft is less prone to breaking or bending. There is no other difference in the shafts so it will just fit.

I have broken a few of the pre 95 shafts and have had the upgraded one for 2 years and still straight and works excellent. I recommend doing it to all that tear into their cases for rebuild. Don't forget to buy a new shift lever though.

--- End quote ---

Yes, Goat is right.
It is one of the very few engine parts that changed as a customer pointed out to me last week.
I had the interchange years correct but didn't actually know what was different until it was pointed out to me...
The clutch arm is different in 89, 90-04.
Fly wheels were different in 86-89, 90-91, 92-04.
Shift levers were different in 83-86, 87, 88-93, 94-04.
I have not researched shift levers :-)
Transmission gears were different in 88-89, 90-04.
Carburetors were different in 89, 90-93, 94-04.
There is probably some other differences but I think these are the major ones.

kwakman:
before I spent so much time lookin at bikes and spec sheets, the 86 I know own was advertised as a 93.when I saw the rwu forks I knew it wasn't a 93, but didn't know it was an 86 either.the non powervalve motor kinda makes it into a kawasaki cr5(!) with square bore/stroke, but have heard they go well.there arent a great many of them about in serviceable shape either....K.

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