14 Fit Is it necessary to clean the throttle?

The reasons for the frustration of refueling include the throttle jam caused by dirt and carbon deposition.

Other related reasons include:

The cylinder is worn and the cylinder pressure is unreliable;

Spark plug failure;

Fuel injector failure;

The air filter element is blocked;

The oil circuit is seriously blocked;

Inaccurate ignition time;

Sensor failure; ……。

The above analysis is for reference.