90530-ZW1-B00 Bevel (0.30) Shim C - Overview. The 90530-ZW1-B00 Bevel (0.30) Shim C is a specialized Honda marine engine part designed for use in the rigging system to accurately adjust engine clearances in Honda marine applications. This bevel shim plays a critical role in fine-tuning the mechanical fit within the engine system to maintain smooth operation, reduce wear, and enhance overall reliability. Engineered to meet exact factory standards, it ensures seamless integration with Honda marine