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Discussion Starter #1
Hi kawasaki lovers I just bought a kx 250 2 stroke and rode like 3 times and it crapped on me I'm thinking of just going ahead and getting a Manuel for it to rebuild the motor but here is the problem I was told the bike was a 98 with a 01 motor so I ran the vin to check and it came back saying it was actually a 99 now how can I find out what the motor is before I go spend 40 bucks on a Manuel that turns out to be no good to me? The number I got from the motor itself is...... Kx250LE016697
 

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Go back to the dealer. Say you want a full engine gasket kit for both years. If it comes back with the same part number? Look up the pistons on bikebandit or some other website that has dealer parts pages. Match part numbers until they no longer match. That is the year change. So as the fenders look the same, the decals change. Until the bike has a radical change, then the manual stops there.

So if you go right back to the first model, they may have the kx engine family running for years in this configuration. So if the engine pops in the frame, how close does that tell you that both models are in the same book?

How long did the Z-1 engine family have that run?
How long did the CB750 engine have that run?
How long did the ZX12 have that engine family running?

See the pattern?
 

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RC, Hubz has started the model flow suggestions. Just to add to that info.

So the 1998 model had a designation of KX-250K5. The 1999 model has a designation of KX-250L1; 2000 KX-250L2; 2001 KX250L3; 2002 KX-250L4; 2003 KX-250M1; etc.

I did see different clutch cover part numbers for a '99 and '01 model, but that could be a material change. The fiche graphics looked similar to each other.

Does the engine have good compression?
 

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Discussion Starter #6 (Edited)
Truthfully I have no clue I am a green horn on actual motor work,
As far as the differences between these years I have learned that 1st gear had changed a bit
 
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