What Is a Lock Bar?

The lever phenomenon, because the ignition time is too early, the engine piston is ignited when it does not reach the optimal ignition point. At this time, because the piston will still move upward under the action of inertia, it will cause the intake valve and the valve seat. The impact of the severe shock, which makes a clicking sound, is similar to the symptoms of engine knock. It is not the knock that can be improved by replacing high-grade gasoline, but the lever.