When I lucked into buying a used 2002 KX250, I didn't realize that I was buying the best trail riding bike in my 33 years of off road riding.
You will need to customize it for the woods; barkbusters, skid plate, jetting, etc., but it is all very easy to do and just about anything you need will be on e Ba Y since several go to part out their '02 there. Parts from 99 to 02 will generally fit, but check buykawasaki.com to be sure of part #'s first.
The bike has a very electric like motor. That carb, with it's selonoid operated jet and dual spark CDI makes the bike start in a single kick almost every time and run clean as a whistle.
I have riding buddies who, after trying this bike out, are in hot persuit of finding one of their own. In California, it's the last year for the green sticker as well.
I stuck an EFM autoclutch on mine and the tall first as well as close ratio gearbox are non-consquential; the bike pulls anything, at anytime and will not stall.
Consider yourself lucky and blessed to have it.