This comprehensive service manual is a valuable resource for anyone looking to maintain and repair their Yamaha 15hp or 20hp 4-stroke outboard engine. Covering models from 2007 to 2014, this manual provides detailed instructions and diagrams for a wide range of repair topics. You will find information on general engine operation, periodic inspections and adjustments, fuel system maintenance, power unit repair, lower unit servicing, electrical system troubleshooting, bracket unit components, specifications, and a comprehensive troubleshooting guide. The manual also includes detailed wiring and circuit diagrams, illustrations, photos, exploded views, and step-by-step instructions to make repairs as straightforward as possible. This manual is an excellent investment for both professional mechanics and DIY enthusiasts, allowing you to save money on expensive dealer labor while gaining a deeper understanding of your Yamaha outboard engine.

The Yamaha 15hp and 20hp 4-stroke outboard engines, produced from 2007 to 2014, are renowned for their reliability, fuel efficiency, and quiet operation. These versatile engines were designed for a wide range of applications, including small to medium-sized boats, dinghies, and inflatable rafts. Their compact size and lightweight design make them easy to transport and install, while their powerful 4-stroke operation provides smooth and efficient performance. These models are powered by a single-cylinder, air-cooled, 4-stroke engine with a displacement of either 249cc (15hp) or 347cc (20hp). They feature a range of advanced features, including electronic ignition, a fuel-efficient carburetor system, and a durable and corrosion-resistant construction. The engines are also equipped with a manual start system and a low-oil pressure alarm, offering additional safety and peace of mind. The Yamaha 15hp and 20hp 4-stroke outboards are known for their ease of maintenance and repair, making them a popular choice for both recreational and commercial use. Whether you're looking for a reliable engine for fishing, cruising, or tendering, these Yamaha models offer a balance of power, efficiency, and durability.