This comprehensive workshop service repair manual provides in-depth technical information for Mercury Mariner 25 BigFoot 4-stroke outboard motors manufactured from 1998 to 2008. The manual covers a wide range of topics, including service procedures, maintenance routines, and troubleshooting guidance. Whether you're a seasoned mechanic or a DIY enthusiast, this manual will equip you with the necessary knowledge and instructions to effectively diagnose, repair, and maintain your Mercury Mariner 25 BigFoot outboard engine. The detailed diagrams, illustrations, and step-by-step instructions make it easy to understand complex procedures and ensure accurate repairs. This manual is an invaluable resource for anyone seeking to perform maintenance or repairs on their Mercury Mariner 25 BigFoot 4-stroke outboard motor.

The Mercury Mariner 25 BigFoot is a powerful and reliable 4-stroke outboard motor designed for small to medium-sized boats. Produced between 1998 and 2008, this model is known for its compact size, lightweight design, and exceptional fuel efficiency. The BigFoot designation refers to the motor's unique, large-diameter lower unit, which provides increased stability and maneuverability, especially in shallow waters. The 25hp engine is a single-cylinder, air-cooled design, featuring a displacement of 499cc and a maximum speed of around 4,000 RPM. Its robust construction and advanced engineering ensure durability and long-term performance, making it ideal for a variety of boating activities, including fishing, cruising, and recreational use.

The Mercury Mariner 25 BigFoot's design incorporates several features enhancing its user experience and functionality. The 4-stroke engine delivers smooth and quiet operation, minimizing noise pollution and maximizing fuel efficiency. Its compact size and lightweight design make it easy to transport and install on various boats. The motor also boasts a reliable electric start system, simplifying engine ignition. The Mariner 25 BigFoot is renowned for its fuel efficiency, making it a cost-effective option for boaters. It can achieve impressive fuel economy, reducing operating costs and minimizing environmental impact. The overall design focuses on user-friendliness, with accessible controls and maintenance points, ensuring easy operation and straightforward maintenance. Though production ended in 2008, this model remains popular amongst boaters seeking dependability, fuel efficiency, and an affordable option for powering their vessels.