Yamaha MAR-MTRCV-11-SS Motor CoverSaltwater Ser 3.1L2.6L - C75-90 2 Stroke Outboards Genuine OEM Yamaha part. Yamaha OEM Motor Covers provide super heavy-duty protection for your Yamaha outboards cowling. It is constructed of ultra-durable Sur Last solution-dyed polyester fabric for the ultimate protection against the elements. This non-abrasive, water resistant cover is resistant to UV, mildew, and mold. The cover has a soft fabric liner for added paint protection, and a screened-on factory log