The pick up was not as good as expected

The buying experience with the Yamaha SZ was good, however the pick up was not as good as expected. The look was good, but the performance was not up to the mark. The servicing was the worst part. I have faced issues with the speedometer and the clutch cable has been a problem since the beginning. There is a vibration sound coming out from the bike and the brake sound is very irritating. Even in high gear, the pick up was not good. Sometimes when a pillion rider is on the bike, there is some sound coming from the back which I have observed.