Complete Service manual for the Mercury: 2 Stroke SERVICE MANUAL 20 JET 20 25 Mercury/Mariner 25 MARATHON 25 SEAPRO With Serial Numbers United States . . . . . . . 0G044027 and Above Belgium . . . . . . . . . . . 09807909 and Above This manual is your number one source for repair and service information. It is specifically written for the do-it-yourselfer as well as the experienced mechanic. Using this repair manual is an inexpensive way to keep your motor working properly. Each manual provides step-by-step instructions based on the complete disassembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. This manual can be kept on your harddrive, burned to CDROM, printed in its entirety, or just print the pages you need!!! Detailed substeps expand on repair procedure information. Notes, cautions and warnings throughout each chapter pinpoint critical information. Numbered instructions guide you through every repair procedure step by step. Bold figure number help you quickly match illustrations with instructions. Detailed illustrations, drawings and photos guide you through every procedure. Enlarged inset helps you identify and examine parts in detail. Numbered table of contents easy to use so that you can find the information you need fast. This manual also makes it easy to diagnose and repair problems with your machines electrical system. Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use. * Tools & Techniques * Troubleshooting * Lubrication & Maintenance * Tuning & Adjustments - * Fuel, Ignition & Electrical * Power Head * Gearcase * Tilt and Trim * Wiring * Oil Injection * Rewind Starters * Engine Synchronisation & Linkage * and more...