When the sun is running in cold weather, it can't be played for the first few seconds. At noon, when the weather was warm, I hit a dozen. What is the reason?

If it is difficult for Dayang 48 scooter to start cold, it can be checked whether the valve clearance is too small, or whether the valve is not closed tightly and the cylinder pressure is low due to carbon deposition, wear and ablation. Check whether the mixing ratio of carburetor is too thin, whether the electronically controlled damper doesn't work, whether the spark plug is defective, whether the hose such as the intake pipe leaks slightly, and whether the negative pressure fuel tank switch is damaged. These are the common reasons for the difficulty in starting the scooter.