The Mercury Mariner 45 HP Bigfoot is a robust 4-stroke outboard motor engineered for reliable performance. Designed for a variety of marine applications, this model exemplifies Mercury Mariner's commitment to quality and durability. Its powerful 45 horsepower output, combined with the specialized Bigfoot gear housing, ensures exceptional thrust and control, making it suitable for demanding tasks and challenging water conditions. This comprehensive Service Repair Manual provides essential information for maintaining and repairing your Mercury Mariner 45 HP Bigfoot outboard motor. It covers a wide range of topics including general information, detailed specifications, maintenance procedures, lubrication, charging and starting systems, fuel system components, ignition, power trim, manual tilt assist, and gear housing. Additionally, the manual includes guidance on installation, wiring diagrams, emissions, and troubleshooting for the powerhead, mid-section, and clamp/swivel brackets, empowering owners and technicians to keep the motor operating at peak efficiency.