How to deal with the broken cylinder of the sweeper?

1. Air intake: The first point, the rocker check with the hand crank crank shaft, feel suddenly light, sometimes also feel the cylinder is not compressed force, remove the fuel injector or spark plug adjacent two cylinders, with thin paper cut into a round, with grease glued to an injector or sweeper spark plug installation hole, stick as tightly as possible, and then rocker, can also use the gas pipe from another injector hole blowing, If the round paper is blown, it means that the sweeper cylinder pad burns through between the two cylinders;
2. Check from the exhaust pipe if the cylinder pad is burned through between the combustion chamber and the water jacket, the cooling water will enter the cylinder, and a part of the cooling water enters the exhaust pipe through the exhaust valve, so the water is discharged from the exhaust pipe;
3. The sweeper oiling check in the cylinder head and cylinder body joint parts, that is, the sweeper cylinder pad around the application of lubricating oil, if the sweeper engine after operation in the joint part of the bubble, serious "chi" sound, indicating that the cylinder pad has been burned through;
4. Remove the oil scale to check if the cylinder pad burns through between the combustion chamber and the water jacket, the cooling water will enter the cylinder, and part of it will leak into the oil pan. If the oil on the oil scale contains water, it indicates that the cylinder liner has burned through;
5 from the sweep car radiator water check radiator filled with cooling water, so that the sweep car engine to maintain a moderate speed, observe the radiator water mouth, if there are bubbles rising, in the exclusion of the possibility of cylinder liner break, it can be presumed that the cylinder pad in the combustion chamber and water jacket burning through, the more bubbles up, that the cylinder pad burning through serious.