This manual covers Mercury Mariner Outboard V6 models manufactured between 1992 and 1998. These outboards, available in various horsepower ratings including 135 HP, 150 HP, 175 HP, 200 HP, and 225 HP, are known for their robust V6 configuration and specific variants such as the 150 XR6, 150 Magnum III, 150 EFI, 175 EFI, 200 EFI, and the Pro Max and Super Magnum series. This documentation provides comprehensive information designed to assist owners and technicians in understanding and maintaining these reliable marine engines. The purpose of this extensive service manual is to provide detailed guidance on the servicing, repairing, rebuilding, and diagnosing of your Mercury Mariner Outboard. It includes in-depth coverage of all major systems, including electrical components like ignition and wiring diagrams, fuel systems such as carburetors and EFI, mechanical aspects of the powerhead, mid-section, and lower unit, as well as controls including linkage and tiller handles. With clear, step-by-step instructions, zoomable illustrations, and exploded views, this manual is an invaluable resource for both DIY enthusiasts and professional mechanics seeking to ensure optimal performance and longevity of their Mercury Mariner Outboard.