Yamaha - Woodruff Key Engine Timing Component 90280-03001-00. Overview. This is one of those parts that's easy to overlook until it causes a real headache. I've torn down motors where everything pointed to bigger issues, but it came back to a worn or sheared key. The Yamaha Woodruff Key 90280-03001-00 keeps rotating components locked in place so timing stays right where it should be. It's small, but it's critical to keeping everything running smoothly.. Key Features. • Secures Component Alignment - Keeps shafts and mounted parts properly indexed.. • Maintains Engine Timing - Helps prevent slippage that can affect performance.. • Precision Yamaha Fitment - Manufactured to exact tolerances for reliable seating.. • High-Strength Metal Design - Built to handle torque and resist wear under load.. • Ideal for Service Replacement - Perfect for repairs, rebuilds, and maintenance.. Engine & Boat Compatibility. The Yamaha Woodruff Key 90280-03001-00 is used across a wide range of Yamaha outboard