This comprehensive Service & Repair Manual for Yamaha 60C, 70C, and 90C outboard engines covers all aspects of maintenance and repair for the 2006 model year. The manual provides detailed information and illustrations to guide you through every step of the process, from basic inspections and adjustments to complete overhauls. The manual is organized into clear and concise sections, beginning with essential information like general specifications, safety guidelines, and proper working practices. It then delves into specific areas such as: * **Periodic Inspections and Adjustments:** This section outlines regular maintenance procedures, including battery care, carburetor adjustments, fuel filter replacement, spark plug checks, and oil injection system inspection. * **Fuel System:** The manual provides detailed information on the fuel system, covering components like the fuel tank, fuel lines, fuel pump, and carburetor. It includes exploded diagrams for easy reference and step-by-step instructions for removal, disassembly, inspection, cleaning, and reassembly. * **Engine Overhaul:** This section covers the complete overhaul of the engine, including detailed instructions for disassembling, inspecting, cleaning, and reassembling components like the cylinder head, cylinder block, pistons, crankshaft, and reed valve. * **Lower Unit:** The manual covers the lower unit, including the gear case, water pump, propeller shaft, and bracket unit. It provides detailed instructions for disassembly, inspection, and reassembly, as well as guidance on propeller shaft housing adjustment and water pump installation. * **Bracket Unit:** The manual covers the bracket unit, including the manual handle, upper casing, bottom cowling, and hydraulic tilt unit. It provides detailed instructions for disassembly, inspection, and reassembly, as well as guidance on hydraulic fluid filling and air bleeding. * **Electrical Components:** The manual covers the electrical system, including the wiring diagram, remote control box, digital meter, magneto base, ignition system, starter relay, power trim and tilt relay, and battery. It provides detailed instructions for troubleshooting and repair. * **Trouble Analysis:** The manual includes a comprehensive trouble analysis chart to help you diagnose and resolve issues with your engine. This manual is an invaluable resource for anyone who wants to maintain and repair their Yamaha 60C, 70C, or 90C outboard engine. It provides detailed instructions, illustrations, and troubleshooting guides to ensure successful and efficient repairs.

The Yamaha 60C, 70C, and 90C outboard engines, introduced in 2006, represent a significant leap forward in Yamaha's marine propulsion technology. These models are known for their exceptional performance, reliability, and durability, making them a popular choice for a wide range of recreational and commercial boating applications. Powered by Yamaha's renowned four-stroke engine technology, these models offer a smooth and quiet operation, along with impressive fuel efficiency. Equipped with features like the Yamaha's proprietary PrimeStart system for effortless starting, as well as a robust tilt and trim system, these engines provide a user-friendly experience for boaters of all levels. Beyond their performance capabilities, the Yamaha 60C, 70C, and 90C outboard engines prioritize durability and longevity. These models utilize corrosion-resistant materials, a robust internal design, and high-quality components to ensure years of reliable operation. The service and repair manual accompanying these engines serves as a comprehensive guide for understanding the intricate workings of these powerful machines. It provides detailed instructions for routine maintenance, troubleshooting common issues, and performing essential repairs. Whether tackling a simple oil change or addressing more complex engine problems, this manual equips owners and technicians with the necessary knowledge and procedures for keeping these Yamaha outboard engines running at peak performance.