Brother i got YBR-G and galti se i went out of workshop when mechanic was doing tune up
he opened it and till now
top speed is limited to only 90-95 km
average in break in was 46-48 km/L
now gone very poor
jo bhi ho jai mechanic ko kaho k never ever touch carburetor and mixture setting
yamaha mechanics abhi untrained hen aur woh bike ki aisi ki tesi ker detay hen
change first oil at 300 km 2nd at 600 km and then 3rd at 1000 km
as recommneded by @amjad635 and i did same
bus mujh se 1 galti ho gaie k mechanic ko carburetor ka ni kaha
ab shyde bike sale he kar doon main