Look correctly, that is a link so you can search and download it for Free instead to pay for one, this should help you alot + save you the purchase of one... Just replace the [dot] with a real dot. direct link to the 01 yz250 manual is there:
www[dot]ymenvom[dot]nl/manuals/M5MW-30[dot]PDF
Apparently, people tell you to get the manual because that is the way to go, because you will need one for maintenance and repair etc You dont whant to be working on a bike all the time without the manual using time to ask simple questions. This kind of info is on the manual and this probably was already asked in the forum(search function?). Am also sure the mod dont whant anyone to start to ask the factory head bolt torque/jetting for each model bike. Just get the manual it will be helpfull for much more things that you think + you have it for free above, so please make some effort and check yourself.
I guess the point is that you just got your manual for free if you can make the effort to click on its link you will have all the spec for you bike that you whant ;)