The time for the preheating of a motorcycle is selected according to the length of the temperature and the arrival of the lubricating oil to each lubricating point.
Because the lower the temperature, the greater the viscosity of the oil, the worse the circulation of the oil, the longer the preheating time will be.
In general, the viscosity of oil is reduced to 1-2 minutes in summer, and the time of the oil stickiness in winter is 3-5 minutes.
In a word, the cooler the weather, the longer it needs to be preheated. If the vehicle is not immediately warm up fierce refueling doors in high speed!