Cold start, step on the accelerator and pull the cylinder at 3000 rpm.

Does the subject want to ask, "What should I do if I step on the accelerator for 3000 revolutions during a cold start?" ? The solution is as follows.

1. First remove the cylinder head and check the strain on the cylinder wall.

2. Secondly, when the piston is closely matched with the cylinder wall and slightly strained, the cylinder wall can be slightly polished and reassembled with the original piston.

3. Finally, re-bore the cylinder and replace it with an enlarged piston, which is the same as the repair method of cylinder explosion.