Dongfeng Yuchai Ba emits black smoke when you add a throttle, and doesn't burn much oil.

Black smoke is mainly caused by poor combustion of mixed gas. Attention should be paid to the following aspects:

1, check the spark plug and ignition coil.

2. Check whether the throttle valve is dirty.

3. There may be a lot of carbon deposit in the combustion chamber.

4. The quality of fuel used is not up to standard.

These are all possible causes of black smoke. Of course, if it is because of carbon deposition and fuel quality problems, high-quality fuel additives can be used to solve it. For details, please ask Baidu Germany Marti!