Regarding the Tricycle Motorcycle piston problem?

If a Tricycle Motorcycle engine has a cylinder problem, it may be due to the piston. There are the following aspects:

1. The piston ring gap is too small: If the opening gap, edge gap or back gap of the piston ring is too small, the piston ring will be stuck by thermal expansion when the engine is running, and will be pressed against the cylinder wall, or the piston ring will be broken, and it is easy to Grooves on the cylinder wall.
2. Piston pin jumps out: Because the piston pin circlip is not installed or falls off or breaks, the piston pin jumps out during movement, which can easily strain the inner wall of the cylinder, causing the cylinder to jump to the axle box.
3. The clearance between the piston and the cylinder is too large or too small: If the piston material is not good, the manufacturing size error is too large, or the piston is deformed after assembly, the matching clearance between the piston and the cylinder is too small, and the piston will get stuck after being heated and expand, thereby pulling the Damage the cylinder wall.
4. Severe carbon deposits on the piston ring: Excessive carbon deposits cause the piston rings to stick or bite into the crack grooves. At the same time, the carbon deposits are hard abrasives and form longitudinal groove wear on the cylinder wall. What is encouraged is 5. The piston is seriously biased towards the cylinder: due to the bending and twisting deformation of the connecting rod, the connecting rod axial force, the parallelism and coaxiality deviation of the piston sales seat are too large, the piston is obviously biased towards the cylinder block, piston ring, piston and cylinder wall Wear accelerates and destroys the formation of oil film.