How to adjust the valve clearance of motorcycle?

The following is the adjustment method of motorcycle valve clearance: 1. Excessive valve clearance will cause abnormal noise of the engine. Due to incomplete valve opening and insufficient intake and exhaust of the engine, the power will decrease. The small valve directly affects the lack of power after the vehicle can't start normally. 2. First open the valve cover, and then align the T mark on the rotor with the mark on the observation hole of the engine body. At this time, pay attention to whether the exhaust valve finally closes. 3. If it is the top dead center, it can be adjusted. If it is not necessary to rotate and align the marks again, the valve clearance can be adjusted. If there is a thickness gauge (feeler gauge), the stroke valve can be 0.06mm and the exhaust gas can be 0.08 mm. If the engine is hot, the rocker arm can move left and right but not up and down, it can be adjusted.