16052-KG4-003 Spring - Overview. The 16052-KG4-003 Spring is a vital OEM compression coil spring used in Honda marine engine systems, primarily supporting the carburetor mechanism. This spring plays an important role in ensuring proper tension and smooth operation within the fuel system, contributing to the overall reliability and performance of Honda marine engines. Designed to match exact factory specifications, tolerances, and materials, it guarantees seamless integration with existing hardwa