I've often question the legality of those PDF copies like you can get on ebay since they
likely have a copyright... but whatever. The images in the PDF versions are often
substandard IMO... As they say "you get what you pay for". There are genuine hard copy
service manuals on ebay as well but a LOT of them are priced well over the price of a new
actual copy. (which as I recall are about $55 or so) Used ones are just as useful as a new
one at a lower price, but one should ask for more pictures to be sure of any quality claims.
Be sure which ever manual you get covers the year of your bike.