Yamaha HPDI 250hp 2 stroke outboard rectifier regulator (60V-81960-01) Posted on July 29, 2023 by admin Please verify that the item you need matches the picture or description before purchasing. We will be happy to assist you! Item for sale is a rectifier regulator (60V-81960-01). Off of a 2003 Yamaha HPDI 250 hp 2 stroke outboard.