ʻO ka moʻo YFB4 he mea hoʻopaʻa piha ʻia, hoʻomaʻamaʻa ponoʻī iā ia iho-fan-cooled squirrel-cage ʻekolu-phase asynchronous electric induction motor. He liʻiliʻi, māmā, hilinaʻi a maikaʻi ke nānā aku. He maikaʻi nō hoʻi, mālie, ʻoluʻolu a maʻalili. Nui, hana kiʻekiʻe, palekana a hilinaʻi.