How to adjust the intake and exhaust of carburetor of Diamond Leopard motorcycle?

The high concentration of mixed gas leads to excessive high-speed fuel consumption and low oil level. After the sudden deceleration, the carburetor can't absorb fuel from the low oil level due to the sudden decrease of intake pressure.

The adjustment method is as follows: prop up the motorcycle, preheat it for 3 minutes, and adjust the throttle screw to keep the idle speed at about 2500 rpm. When the idle speed suddenly rises, slowly adjust the mixture screw to remember this position, then turn it counterclockwise for a quarter turn (the direction and degree of carburetor adjustment are different, but the overall purpose is to slightly increase the mixer concentration on this basis), and then start the motorcycle to adjust the throttle screw to keep the engine speed at 65,438+0,200-.

If there is no improvement, remove the spark plug to see if there is too much carbon deposit. Or whether the spark matching is normal.

If the problem cannot be solved, lower the oil needle by one grid, or open the carburetor to increase the oil level by 1.5mm, and then adjust the mixture concentration and idle speed as described above.