How about the engine of Big Dipper 1.0?

The quality is acceptable. The throttle valve needs to be cleaned frequently, otherwise it will break easily. Nothing else is wrong. That is, the power should not be too strong, and the shift should be delayed when it is fully loaded. Personally, I think the load is less than 400kg, and the shift timing is 2 100. Of course, it is not as good as the engine of 1.4, but it is acceptable. If it is mainly to pull goods, it is recommended to choose 1.4. It doesn't matter if you pull the goods occasionally.