The Mercury Mercruiser 305 CID V8 engine, produced between 1998 and 2001, represents a robust and reliable power plant for marine applications. With a displacement of 5.0 liters, these engines typically deliver between 200 and 260 horsepower, making them suitable for a variety of boating needs. Engineered for durability and performance, the 305 CID models are known for their consistent operation and are a testament to Mercury Mercruiser's commitment to quality marine propulsion. Whether equipped with a carbureted or fuel-injected system, and paired with sterndrive or inboard configurations, these engines offer dependable power. This comprehensive English service manual provides detailed guidance for the maintenance and repair of the Mercury Mercruiser 305 CID engines from 1998-2001. It covers essential procedures including lubrication, cooling system servicing, fuel filter replacement, and spark plug maintenance, along with recommended intervals for these tasks. Technical specifications, troubleshooting information, and safety guidelines are also included, ensuring that owners, mechanics, and technicians have the necessary resources to keep these V8 marine engines operating at peak performance and reliability.