I just bought an '08 WR250X because I was sad only getting 40ish MPG on any one of:
'02 Suzuki DR650SE (semi-motard)
'90 Suzuki VX800 (sport tourer)
'10 Kawasaki Ninja 250 (for my girlfriend)
I must say, I am in love with the wee motard! I got 60 MPG on the 70MPH Scottsdale-Tucson ride home from buying it!
I read the owners manual yesterday and tried short shifting it liek they recommend... hard to get used to for a few miles, but I'm starting to like the way it sounds ridden that way... I can just hear the MPG!
Of course, that'll all go out the window the first time I take it over Mt. Lemmon....
Fun!