This manual covers the Mercury Mercruiser TKS Carburetors Number #41, a critical component for marine engine performance. Designed for reliability and optimal operation, these carburetors are engineered to ensure efficient fuel delivery for a range of models, including the 3.0L ALPHA, 4.3L ALPHA, 5.0L ALPHA/BRAVO, and 5.7L BRAVO. The TKS system, also known as Turn Key Start, is a key feature enhancing the user experience and engine responsiveness. This comprehensive workshop service repair manual provides detailed guidance for the repair, maintenance, and servicing of the TKS Carburetor System. It includes step-by-step procedures with visual aids, exploded views, and troubleshooting information for various carburetor types, including Mercarb 2 Barrel and Weber 4 Barrel. The manual also covers related systems such as fuel delivery, electrical, cooling, and transmission, making it an indispensable resource for owners, mechanics, and technicians seeking to maintain their Mercury Mercruiser engines.