What should I do if the tractor can't start fire in cold weather?

Hello, you said a single-cylinder hand-cranked engine. If the weather is cold, it will make it difficult to start. Heat the water in the water tank first, and then slowly bake the oil pan with charcoal fire, otherwise the oil will be too condensed. If it's antifreeze, you don't need to bake it. Diesel oil should be added with negative oil, just add -35, and the above points can be basically achieved.