This manual pertains to the Amal Carburetter, a pivotal fuel delivery component widely utilized on BSA motorcycles. Known for its robust construction and relative simplicity, the Amal carburetter played a significant role in the performance of BSA's diverse range of motorcycles, from single-cylinder models to parallel twins, across several decades. This guide is intended for owners and enthusiasts of classic BSA motorcycles who aim to understand, maintain, and optimize this essential part of their vintage machines.

This comprehensive service and workshop manual provides detailed coverage of the Amal carburetter's theory of operation, disassembly, cleaning, inspection, and reassembly. It includes in-depth procedures for tuning and adjustment, troubleshooting common issues, and selecting appropriate jetting and settings for optimal engine performance. The manual also covers float level adjustment, idle speed settings, and throttle cable adjustments, offering valuable technical information for owners, mechanics, and technicians to ensure the proper functioning and longevity of their BSA motorcycles' fuel systems.