How to connect the positive and negative poles of motorcycle battery? There are three lines.

The three power cords of a motorcycle are thick red, thin red and thick black. Wiring method: first fix the battery, then connect the thick red line and thin red line to the positive electrode of the battery, and finally connect the black line to the negative electrode!

The piston moves upward and the mixture flows into the crankcase. The piston descends, and the mixed air pressure is injected into the combustion chamber to complete the first compression. After the mixture reaches the cylinder, the piston moves upward to close the air inlet and air outlet. When the piston compresses the gas to the minimum volume (this is the second compression), the spark plug is ignited.

The pressure of combustion pushes the piston downward. When the piston descends to a certain position, the exhaust port is opened first, and the exhaust gas is sent out and then the air inlet is opened, and new mixed gas enters the cylinder to squeeze out the remaining exhaust gas.

Extended data:

By turning the throttle handle of motorcycle to drive the throttle steel wire to hang the rope, the throttle valve and the fuel injection needle are controlled to move up and down, and the cross section and fuel supply of the intake throat are changed to meet the needs of mixed gas at different speeds and loads.

Idle speed adjusting screw is installed on one side of carburetor to adjust idle speed. Idle stop screw is used to prevent the throttle from rotating and adjust the minimum opening of the throttle. There is a return spring above the throttle to keep the throttle closed when the throttle handle is not turned.

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