Hydrofoil Stabilizer Fins – Fits Outboard Motors Up to 50HP (4-50 HP) (Replaces Five Oceans FO-4470, SE Sport 300) 4HP black smoke from the exhaust

black smoke from the exhaust

Relieve tension by swiveling the alternator or tensioner

steady stream of water from the tell-tale outlet

A primer bulb that won't stay firm or takes a long time to prime can also indicate failing internal check valves

Firmly attach a new

Hydrofoil Stabilizer Fins – Fits Outboard Motors Up to 50HP (4-50 HP) (Replaces Five Oceans FO-4470, SE Sport 300) 4HP black smoke from the exhaustProduct Details These Hydrofoil Stabilizer Fins are designed to improve performance and stability for outboard motors ranging from 4 to 50 HP. Suitable for a wide variety of brands including Mercury, Yamaha, Evinrude, and Honda, they help boats get on plane faster and stay on plane at lower speeds. The two piece design allows each foil to flex independently, absorbing shock and providing a smoother ride. This part serves as a direct replacement for