Yamaha SZX Has Very poor mileage. it gives only 25 to 30 kmpl.
I bought this bike without kicker and now self is also not working. Great bike. Even people working in their show room are not using this bike.
If you want more experience, get one and try you will get 60 km per two liter.
I have bought this bike on 2nd May 2010 and I am using this bike now only to go to near by shop or friends house because of its poor millage.