When a motorcycle travels 3,500-10,000 kilometers, it is necessary to carefully remove the carbon deposits in the cylinder head combustion chamber, around the valve seat, and in the exhaust passage. Removal of combustor from the combustor can be removed with a blade scraped by a bamboo blade. The carbon deposit in the exhaust port can be removed with a screwdriver. Do not scratch the walls of the combustion chamber, the face of the valve seat, and the wall of the exhaust port. After removing the coke, clean it with clean gasoline or kerosene, clean it with a clean soft cloth, and reassemble it.
The heat of an air-cooled engine is mainly radiated by the fins on cylinder heads and cylinders. Without these fins, the engine will not work properly due to overheating. Therefore, the heat sink must be kept intact, clean, and should be washed after the motorcycle has been used for a certain period of time, especially after using the motorcycle on a rainy day, be sure to rinse with water.
The heat of an air-cooled engine is mainly radiated by the fins on cylinder heads and cylinders. Without these fins, the engine will not work properly due to overheating. Therefore, the heat sink must be kept intact, clean, and should be washed after the motorcycle has been used for a certain period of time, especially after using the motorcycle on a rainy day, be sure to rinse with water.
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