You can place an order through the NSR-WORLD.com market place for the full printed manual (payments are done via paypal through the marketplace).
To view the portions of the manual that are available online (www.nsr250.net/forums/members) you need to become a supporting member. You can sign up for this via the link at the top of the forums (subscriptions, http://www.nsr250.net/forums/lwtopup.php). there are two level of support, Carbon and Titanium.
For a list of chapters that are availabe for online viewing, see the following thread:
http://www.nsr250.net/forums/viewtopic.php?t=8723
For more details on ordering a full copy of the printed manual, see the following thread:
http://www.nsr250.net/forums/viewtopic.php?t=9014