87571-881-671 Tank Caution Mark - Overview. The 87571-881-671 Tank Caution Mark is an important safety decal designed to provide clear warnings related to the fuel tank in Honda marine engine systems. It plays a crucial role in maintaining safe operation by alerting users to fuel tank hazards and proper handling instructions. This OEM part is compatible with various Honda marine engines, providing reliable, factory-standard integration. Durable and precisely engineered, it ensures seamless fit w