125 how to adjust the valve clearance of motorcycle injector? What is the best value of adjusting clearance?

Adjust the valve clearance of 125 ejector pin machine. First, support the car with the main bracket, remove the two nuts on the cylinder head and the magneto cover on the left side of the engine, turn the magneto counterclockwise, and align the T-dash line of the magneto rotor with the hole on the magneto cover. At this time, check the valve clearance. If the rocker arm is loose, the valve can be adjusted. If the rocker arm is too tight, the rocker arm of the movable magneto moves, rotate the magneto again, and re-align T. Generally, the air intake gap of the injector 125 is 0.05-0.07, and the exhaust gap is 0.08-0. 12. The valve clearance should not be too small, not less than 0.05. If the valve clearance is too small, it will cause difficulties in cold starting, unstable idle speed, and even wear parts such as valve rocker and camshaft, and the optimal value of valve clearance should not be based on the so-called "silence".

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This entry is compiled and applied by the scientific entry "Popular Science China"? Review.

The function of the valve is specially responsible for inputting air into the engine and discharging exhaust gas after combustion. From the engine structure, it can be divided into intake valve and exhaust valve. The function of the intake valve is to draw air into the engine and mix it with fuel for combustion; The function of the exhaust valve is to exhaust the exhaust gas after combustion and dissipate heat.