Throttle cleaning quality inspection

2. If the gum content in pure engine oil is too high, no foreign matter falls into the engine cylinder after combustion, and the phenomenon of top valve is not caused, the problem can be solved by cleaning the whole oil circuit (including replacing the gasoline filter, cleaning the nozzle and cleaning the throttle valve);

3. If foreign matter enters the valve or cylinder block, but it does not cause the phenomenon of valve jacking, you need to lift the engine, disassemble the engine, and clean the cylinder block and valve with professional cleaning agent. As long as the cylinder head is opened, it will hurt the engine. Because the cylinder block of the engine covers the cylinder head in a dust-free working state. Even a 4S shop will not have a dust-free workshop);

If you want to defend your rights, you have to join other victims and go to the local Consumers Association to complain. Remember! We must unite our forces to get the final compensation. Because it is difficult to succeed with small and broad!