I am very satisfied with my GS150R, [No: TN 74 P 8304] till 20500Km, after 2500KM there is an unwanted noise arise from engine. So in my second service I made this complaint to the service engineer from SMK Suzuki, Porur, Chennai. But they are not able to solve that and the sound still remains, so in my third service again I made this complaint to SMK Suzuki Velachery, Chennai. They also not able to solve this problem even they took 10 days of time to solve this problem. Now I am really unsatisfied with my bike only because of this noise from engine. Kindly do the needful.