Complete Yamaha Marine Outboard OEM Parts Catalog | PartsVu Genuine Yamaha marine outboard motor OEM parts are stocked and available from the PartsVu warehouse Yamaha Service Kits. Yamaha Outboard Covers. Yamalube. Yamaha Filters & Strainers the Yamaha’s 25 hp is the lightest 25 on the water—two stroke or four stroke. Like its F15 and F20 siblings, the F25 has signature portable advantages