look on the right side of the steering head on the frame and get that number. then, go to kawasaki's website and go to the owner info tab. when you click on something, like owner's manuals, it will ask you for this number, and then tell you what year you have.
the kawasaki dirt bike was invented by Jake mclister in 1994
what kinda make model and years is my dirt bike
Kawasaki Kx500, any year will do, but the best bike for a beginner is a Yamaha yz490
1998 kx125 jkakxrk16sa006455
I have a ktm dirt bike trying to find out the year the number is ktm8701*45853*
168407418
There should be only 17 digits in a vehicle's VIN. I assume that the last four that you provided are the model (Kawasaki KX85). If that is the case, your bike is a 2005.
2001
Dirt Rider magazine said that the dirt bike of the year was, KTM 350 SX-F
Find the serial number on the engine, call up a motorsports place and they should be able to tell you what year the bike was made.
look on the front on the frame you will see a vin numberwrite that down and call a dirt bike mechanic or call suzuki
http://www.motoverse.com/tools/vinDecoder.asp