What I will say though is that an NSR that properly prepared, and properly ridden will give something in the region of 6.5~7.5km per litre, or 18~21 MPG.
Why would you buy an NSR and then worry about fuel economy?
Hey trickricky, don't be chased away from this forum by the silly answers that the members give you to questions such as yours. This forum is without doubt the biggest archive of NSR information that you could ever find, but it's just that the people on here are all rather hardcore when it comes to their NSR's.
Oh, and don't forget to give 'em plenty of stick back if they give you a hard time
