In the book the fuel and lubricant systems of the main types of motorcycles - K1B "Kiev resident", by M1A "Moscow", K-125, IZh-350, M-72 are described, the oil products and ways of their economy applied in motorcycles at operation of motorcycles are characterized, basic provisions about burning of mix, the theory of friction, wear of an ismazka are given and also operational characteristics of the Soviet motorcycles are given.