Yes, the CBB startup capacitance can be increased. CBB starting capacitor is used for starting single-phase motor, its main role is to provide additional starting current. Increasing the CBB starting capacitance can increase the starting current and improve the starting performance of the motor. However, it should be noted that the capacity of the CBB starting capacitor cannot exceed the rated capacity of the motor, otherwise it may cause the motor to overload or damage. Therefore, when selecting the CBB starting capacitor, it is necessary to make a reasonable choice according to the rated capacity of the motor and the starting requirements.