Aoa, kuch din pehlay main ne 2010 ch 125 used purchase kiya. Engine main koi grinding koi shor nahi hai aur pick bhi theak hai aur speed bhi. Problem ye hai ke long drive karo to white smoke niklta hai. Lakin jab bike thanda ho ya thora bohat chaly to koi smoke nahi hota. Please help me to sort out whats problem i am worried and need your help thanks.