2018 Mercury Marine® FourStroke 5 HP SailPower Power Tender and Skiffs. Effortlessly. 57 pounds of agile performance. Features may include: Shallow Water. Multiple trim positions enhance performance and enable shallow-water operation. Quiet. Through-prop exhaust on all Mercury® 4 - 6hp FourStrokes exits underwater for quiet operation. Easy to Start. Automatic decompression bleeds off cylinder pressure to reduce the pulling force required to start the engine. Lightweight. Weighing just 38 and 57 pounds, respectively, our 2.5 - 3.5hp and 4 - 6hp FourStroke outboards are easy to lift and carry. Generate Power. Convenience and performance you can count on. 4 amp alternator to charge a battery: exhaust relief holes and 6" prop for improved handling when reversing heavy boats; even an added rectifier to power small external lights. A 5hp FourStroke that powers your boat.