Mad Dog sputter at high speed  By  spike68 (Read 1,014 times)

Hello to all. Just bought a 16' Ice Bear Mad dog 150. When cruising at high speed to full throttle bike begains to sputter and almost choke out, it does not shut off. Can anyone tell me if this is normal? My thinking is that it is at limiter and shutting it down-this happens when the speedo reads 60+(i know thats not the true speed). Any insight would be helpful! Thank you