What are the reasons for motorcycles being difficult to start in cold weather?

[WalterDella]

The reasons for motorcycles being difficult to start in cold weather are: 1. Fuel aspect: In cold weather, the temperature of gasoline drops significantly, making it difficult for gasoline to vaporize in the carburetor, resulting in too little gasoline in the air-fuel mixture and making the mixture too lean; 2. Lubricating oil aspect: As the temperature decreases, the viscosity of lubricating oil increases, its fluidity deteriorates, and the engine starting resistance increases; 3. Current aspect: The viscosity of the electrolyte in the battery increases, and its fluidity and diffusivity deteriorate. The solutions for motorcycles being difficult to start are: 1. Check the carburetor, fuel mixture ratio, oil level, and choke; 2. Check if the valve clearance is too small or if there is air leakage; 3. Check if the high-voltage spark for ignition is strong; 4. Open the choke to force start.