This comprehensive Mercury Mercruiser Marine Engines Number 25 GM V-6 262 CID (4.3L) Workshop Service Repair Manual covers models from 1998 to 2001. This manual is an essential resource for anyone looking to service or repair their boat's engine. It provides detailed instructions and high-quality diagrams to guide you through every step of the process. The manual covers a wide range of topics, including: * **General Information:** This section provides important information on safety, maintenance, and troubleshooting tips. * **Removal and Installation:** This section covers the removal and installation of various engine components. * **Engine:** This section focuses on the 262 CID / 4.3L engine, including its components and operation. * **Electrical Systems:** This section covers the starting, ignition, charging, and instrumentation systems, including detailed wiring diagrams. * **Fuel Systems:** This section covers both carbureted and electronic fuel injection systems, including detailed instructions on disassembly, reassembly, and troubleshooting. * **Cooling System:** This section covers both seawater and closed-cooled systems for various engine models. * **Exhaust System:** This section covers the manifolds, elbows, risers, and collectors of the exhaust system. * **Drives:** This section covers drive shaft models for the marine engines. * **Power Steering System:** This section covers the pump and related components. This manual is a valuable tool for both professional mechanics and DIY enthusiasts. The detailed instructions and clear diagrams make it easy to understand even for those with limited mechanical experience.

The Mercury Mercruiser Number 25 GM V-6 262 CID (4.3L) engine, a powerhouse in the marine world, represents a collaboration between Mercury Marine and General Motors, bringing the renowned reliability and performance of GM's V-6 engine to the boating industry. Introduced in the late 1990s and spanning model years 1998 through 2001, these engines are known for their robust construction and versatility, becoming a popular choice for a wide range of recreational boats. They offer a compelling combination of power and efficiency, making them suitable for everything from small runabouts to larger cruisers. With a displacement of 262 cubic inches, or 4.3 liters, this engine provides ample torque and horsepower for smooth acceleration and comfortable cruising. The Number 25 engine is a testament to Mercury Mercruiser's commitment to innovation, incorporating several key features that enhance its performance and reliability. Notably, it features a cast-iron block and cylinder heads, providing exceptional durability and resistance to corrosion in the harsh marine environment. The engine also benefits from a multi-point fuel injection system, ensuring efficient combustion and consistent power delivery across the rev range. The Mercruiser engine is also known for its smooth operation and quiet running, making it an ideal choice for boaters who prioritize a comfortable and enjoyable experience on the water.