Is the Jialing 70 a two-stroke or four-stroke engine?

[KingMarie]

Jialing 70 is a four-stroke engine with chain drive. The relevant introduction of four-stroke engines is as follows: Definition of four-stroke engine: A four-stroke engine refers to an engine where the crankshaft completes one working cycle by rotating twice, going through four strokes: intake, compression, power, and exhaust. In contrast, a two-stroke engine only requires the crankshaft to rotate once and go through two strokes to complete a working cycle. Precautions for selecting engine oil: It is particularly important to remind that when purchasing, you should clearly communicate to the seller that you need four-stroke gasoline engine oil to avoid buying two-stroke engine oil or diesel engine oil.