Yamaha - Oil Tank Oil Injection System Component 6L2-21707-01-00. Overview. On oil-injected two-strokes, the oil tank is one of those parts you don't want to overlook. If it cracks, leaks, or starts pulling in air, it can lead to bigger engine problems fast. I've seen motors get into trouble just from a bad tank or inconsistent oil supply. Keeping a solid, reliable tank in place gives you peace of mind every time you're running.. Key Features. Reliable Oil Storage - Maintains consistent supply of oil for proper engine lubrication.. Durable Tank Construction - Built to handle vibration, heat, and marine conditions over time.. Leak-Resistant Design - Helps prevent oil loss and keeps the system sealed.. Factory-Spec Fitment - Designed to integrate properly with Yamaha oil injection systems.. Supports Engine Protection - Ensures steady oil delivery to reduce wear on internal components.. Engine & Boat Compatibility. Designed for Yamaha two-stroke outboard engines equipped with oil injectio