Yamaha Fz-s Compony Fault

Location/place: Agra

Name of company/service: Yamaha motors

Sir,
Maine 26/02/2013 ko Agra ke J.M.motors se yamaha fz-s li.Jo 2 din chalane ke baad missing karne lagi.compony main dikhaya to mujhse kaha gaya ki abhi thik karwate hai,carburater ka 1 pech ghumakar mujhe gaadi de di gayi.Iske baad bhi problem thik nahi hui to mujhse kaha gaya ki pahli service par thik ho jaayegi.4 din baad gaadi ka engine awaaj karne laga.use dikhane par mujhse kaha jaata hai ki itni to awaaj aati hai aur humara engineer aayega to hum use dikha denge.Sir aaj 4 mahine baad bhi koi samsya ka hul nahi ho paaya hai.Mujhe shak hai ya toh gaadi compony faulted hai ya mujhe purani gaadi bech di gayi hai.So please help me.