Your complete guide to keeping your Nissan/Tohatsu outboard running strong. This Seloc manual covers 2.5-140 HP engines from 1992-2009, including EFI and TLDI models. Get step-by-step instructions with hundreds of photos and diagrams for everything from routine maintenance to major repairs. Skill ratings help you know what you can tackle yourself, while detailed specs and wiring diagrams support confident troubleshooting. Trust the same resource used by marine schools and professionals for over 50 years.