1, 2, 3 issues will vanish after first tuneup.
4. It's just because of your previous ride. Yamaha has very soft and comfortable suspensions.
5. Didn't get, what you really trying to say?
6. Again Yamaha has very soft seat, better go to any local seat maker and ask him to make a comfortable seat for you which you can get in Rs. 600 - 700/.