What Causes Motorcycle Engine Overheating?

[DiElisa]

Reasons for motorcycle engine overheating: prolonged driving, hot weather, excessive vehicle load; some inherent issues with the vehicle can also be contributing factors. Decrease in engine power: When driving at temperatures above 35 degrees Celsius, with a tailwind or under heavy load at low speeds, the engine overheating phenomenon becomes more severe, further reducing the engine's air charging coefficient. This leads to a decrease in the amount of fresh air-fuel mixture entering the cylinders, lowers the average effective pressure in the cylinders, and results in a decline in engine power. Increase in fuel consumption: When the engine temperature is too high, it is easy for the lubricating oil that seeps into the cylinders to form carbon deposits under high-temperature and oxygen-deficient conditions. These deposits accumulate on the piston top, combustion chamber walls, valve tops, and spark plugs, creating hot spots that can cause pre-ignition and abnormal combustion. This can lead to deformation of the engine block and cylinder head, or even cracks or warping, and can also easily burn out the cylinder head gasket, resulting in a decrease in cylinder pressure at the end of compression and an increase in fuel consumption.