1.My Honda CBF stunner is getting only 25 km/l ,

2.The 1 and the 5 th gear have the same effect.

The Honda company is ensuring 60 km/l for this cbf stunner and I have not even getting anything near to 50,from the first day Itself I have complaining about the gearbox shifting ,that evenafter shifting to the 5 th gear the engines is vibrating too much....... and making sound similar to 1st gear.I need to fix this two problems.

My question to Honda is why they proceeding with same product even after detecting these issues commonly and why don't they put ad that "this bikes gives mileage around 50 and have some problem in gear shifting...and got littile vibration after 60"?....like that then there intension mainly is to fool the consumer!