My bought my bike in october 2015 and since them i am having the problem of bike not starting without choke if left standing for 3-4 hours even at the temperature of 35 to 40 degree celcius. I have shown it at hero servicing center several times but they are not able to deduct the problem. Please help as every time i go to the service center, they keep it for a day check it and return but problem remains the same.