This comprehensive Factory Service Manual for the 1994 Yamaha 25MLHS outboard motor is your ultimate resource for all repair and maintenance needs. It provides in-depth, step-by-step instructions and detailed illustrations, ensuring you have everything you need to tackle any job, from routine maintenance to complex repairs. The manual covers a wide range of topics, including:

* **General Information:** A thorough overview of the engine's design, operation, and safety procedures.
* **Periodic Inspection and Adjustments:** Detailed instructions on regular maintenance tasks, such as oil changes, filter replacements, spark plug checks, and adjustments.
* **Fuel System:** Comprehensive guidance on troubleshooting and repairing fuel-related issues, covering components like the fuel tank, lines, pumps, and carburetor.
* **Power Unit:** In-depth explanations of the engine's internal workings, including the cylinder head, pistons, crankshaft, and connecting rods, with instructions for repair and maintenance.
* **Lower Unit:** Detailed instructions for servicing and repairing the lower unit, including the propeller, gearcase, and drive shaft.
* **Bracket Unit:** Information on the mounting system and its components, including installation and maintenance procedures.
* **Electrical System:** Thorough coverage of the electrical system, including the ignition system, charging system, and wiring diagrams.
* **Specifications:** Complete engine specifications, including dimensions, tolerances, and fluid capacities.
* **Troubleshooting:** A comprehensive section dedicated to diagnosing and solving common engine problems.

The manual includes numerous illustrations, exploded views, diagrams, and photos, making it easy to understand complex procedures. This factory manual is the definitive resource for anyone looking to perform repairs or maintenance on their 1994 Yamaha 25MLHS outboard motor.

The Yamaha 25MLHS outboard motor is a dependable and versatile powerplant designed to deliver reliable performance for a variety of recreational boating applications. The "MLHS" designation signifies that this engine is part of Yamaha's "Light" series of outboards, known for their lightweight design and fuel efficiency. Powered by a single-cylinder, four-stroke engine, the 25MLHS boasts a displacement of 252cc, producing 25 horsepower at 5,000 RPM. This makes it an ideal option for smaller boats like dinghies, inflatables, or lightweight fishing boats, offering sufficient power for smooth cruising, light fishing, and recreational activities. Its compact size and lightweight construction make it easy to handle and transport, ensuring seamless installation and removal for convenient maintenance.

The Yamaha 25MLHS is built with a focus on user-friendliness and long-term reliability. It features a simple and intuitive control system, allowing for effortless operation by both novice and experienced boaters. Its robust construction incorporates high-quality materials and durable components, ensuring prolonged performance even in challenging marine environments. The engine is equipped with a CDI ignition system for quick and efficient starting, while the manual start option provides added versatility. The 25MLHS also benefits from Yamaha's renowned reliability and durable construction, making it a dependable choice for recreational boating enthusiasts seeking a sturdy and easy-to-use powerplant.