This workshop service repair manual provides comprehensive coverage for the 2003 FXSTD Deuce ST. As a distinguished model within the iconic Softail family, the FXSTD Deuce is recognized for its custom styling, long, low profile, and powerful V-Twin engine. This manual is designed to assist owners, independent repair shops, and DIY enthusiasts in understanding, maintaining, and repairing their FXSTD Deuce ST, ensuring its continued performance and reliability. The scope of this manual is extensive, encompassing all major systems including the engine, fuel system, chassis, brakes, suspension, steering, and electrical system. It offers detailed step-by-step procedures for service, maintenance, troubleshooting, diagnostics, disassembly, and assembly. With hundreds of pages of diagrams, critical specifications, and professional-level diagnostic and repair information, this English-language manual serves as an indispensable resource for maintaining the integrity and functionality of your 2003 FXSTD Deuce ST.