motorcycles are mainly composed of motorcycle auto performance parts such as engine, electrical equipment, transmission system, driving system and steering system.
(1)motorcycle auto performance parts-engine
The engine is the power source of the motorcycle, and the combustible mixture is burned in the cylinder to convert thermal energy into mechanical energy, thereby driving the motorcycle. There are four-stroke and two-stroke engines, as well as single-cylinder, multi-cylinder and V-type multi-cylinder. The performance and working conditions of the engine directly affect the performance and working conditions of the motorcycle. The engine is generally composed of "three major institutions" and "five major systems".
The "three major mechanisms" are: crank connecting rod mechanism, body mechanism, and valve mechanism.
The "five systems" are: fuel supply system, intake and exhaust system, cooling system, lubrication system and ignition system.
Some motorcycles use exhaust gas turbocharging to increase the air intake.
(2)motorcycle auto performance parts-drive system
The transmission system includes clutches, transmissions, and transmissions. The transmission system transmits the power of the engine to the rear wheels through certain changes, so that the rear wheels can obtain various speeds and forward forces suitable for different road surfaces and loads.
(3)motorcycle auto performance parts-driving system
The function of the driving system is to make the motorcycle form a whole, support the quality of the whole vehicle and ensure the driving of the motorcycle, convert the torque from the transmission system into the traction force that drives the motorcycle, and at the same time bear and transmit the various forces acting on the wheels by the road surface. This kind of reaction force makes the motorcycle run smoothly on different roads to ensure safety.
The driving system mainly includes motorcycle auto performance parts such as frame assembly, tailstock, front fork assembly, rear suspension assembly, and front and rear wheel assemblies.
(4)motorcycle auto performance parts-manipulating the braking system
The function of manipulating the braking system is to directly control the driving direction, driving speed, lighting and signals, etc., to ensure driving safety. It includes steering handle assembly and brake assembly.
Generally, the manual shift handle, clutch handle, light and electric horn control switch are installed on the left handle, while the accelerator handle and front wheel brake handle are installed on the right handle. The foot-controlled gearshift lever is mounted on the left foot pedal, and the rear wheel braking is controlled by the right brake pedal.
(5)motorcycle auto performance parts-electrical system
The role of the electrical part is to start the engine, ignite the mixture, issue sound signals, and illuminate. The electrical part generally includes four major parts: power supply system, ignition system, lighting system, and instrumentation signal system. Motorcycles with electric start also include an electric start system. With the development of science and technology, new technologies have been continuously adopted in the electrical system of motorcycles, such as electronic fuel injection system, electronically controlled brake anti-lock braking device (ABS system), engine exhaust and other control circuits, electric brackets, etc.
The role of the instrument is to indicate the speed, mileage, engine speed and the size of the charging current. The electrical and instrumentation of the motorcycle are connected together by the cables running through the whole vehicle, the corresponding control switches and various connectors to form the electrical equipment system of the motorcycle.
When driving a motorcycle, the division of labor of the driver's limbs is as follows: the left hand is responsible for the clutch handle, controlling the ignition advance device, pressing the horn, changing the lights, etc.; Responsible for shifting gears; the right foot is responsible for the control of the rear brake.