Zongshen 200 water-cooled tricycle always washes out the cylinder pad?

Generally, the cylinder gasket is often washed away, so it is necessary to check these places. 1. The flatness of the plane on the cylinder, and whether some places are sunken. 2. Whether the flatness of the mounting surface of the cylinder head is partially sunken. 3. Whether the cylinder head mounting screws are easy to loosen. 4. Whether there are defects in the structure where it is often washed, such as too large high and low pressure difference and too narrow contact surface. 5. The quality of the cylinder gasket, pay attention to whether the same brand of cylinder gasket has been used all the time, and the material and structure are defective. Try to change the brand and apply more sealant to the points that are prone to problems. 6. The assembly process, whether the glue is uneven, will always accidentally touch a place when assembling, and there will be bumps in an assembly action.