Why do motorcycles become weak, easy to stall and difficult to start when driving for a long time in hot weather? How to avoid the above situation or improve it?

Ordinary small-displacement motorcycles are not suitable for long-distance driving, especially in winter, but in summer when the temperature is high, there will be serious heat attenuation, poor heat dissipation effect of air-cooled vehicles and serious high temperature of engines. Take a rest after a walk to let the engine have a cooling process. What you mentioned above is not serious. The serious situation is that the engine may not be turned off and the switch cannot be turned off after long-distance driving, because the temperature of the combustion chamber is too high, resulting in heat.