Yamaha 5CMHS v2 Owner's Manual

Pages 112

Year 2003

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of 112

Yamaha 5CMHS Specification

The Yamaha 5CMHS is a reliable and efficient 4-stroke outboard motor designed for small boats, offering an ideal combination of power, portability, and fuel efficiency. It features a single-cylinder 139cc engine, delivering a maximum output of 5 horsepower. This engine configuration ensures smooth and quiet operation, making it suitable for a variety of watercraft applications. The motor incorporates a manual start system, which is straightforward and dependable, further enhancing its user-friendliness.

A key aspect of the Yamaha 5CMHS is its compact and lightweight design, weighing approximately 27 kilograms, which facilitates easy transportation and installation. The integrated fuel tank has a capacity of 1.1 liters, providing sufficient range for recreational boating without the need for additional fuel storage. Its efficient fuel consumption rates contribute to reduced operational costs and lower environmental impact.

The 5CMHS model includes a 360-degree steering capability, allowing for excellent maneuverability in tight spaces and precision in navigation. The shallow water drive system is particularly useful for operating in areas with limited water depth, minimizing the risk of damage to the propeller and lower unit. It features a robust aluminum propeller designed to withstand the rigors of marine environments while delivering optimal thrust.

This outboard motor is engineered with Yamaha's advanced anti-corrosion protection, ensuring durability and longevity in saltwater conditions. Maintenance is simplified with features like an easy-access oil drain and fill ports, promoting hassle-free servicing. The Yamaha 5CMHS embodies a balance of performance, reliability, and ease of use, making it an excellent choice for boaters seeking a dependable power solution for their small vessels.

Yamaha 5CMHS F.A.Q.

How do I start the Yamaha 5CMHS outboard motor?

To start the Yamaha 5CMHS outboard motor, first ensure the engine is in neutral. Prime the fuel line until it feels firm, then set the choke if needed. Pull the starter cord briskly to start the engine. Once started, adjust the choke to ensure smooth operation.

What is the recommended maintenance schedule for the Yamaha 5CMHS?

The Yamaha 5CMHS should be serviced every 100 hours or annually, whichever comes first. Regular maintenance includes checking the spark plugs, replacing the oil, inspecting the propeller, and cleaning the fuel system.

Why is my Yamaha 5CMHS not starting?

If your Yamaha 5CMHS is not starting, check for fuel issues, such as an empty tank or clogged fuel line. Ensure the spark plug is clean and properly connected. Additionally, verify that the engine is in neutral and the kill switch is in the correct position.

How do I troubleshoot overheating issues in my Yamaha 5CMHS?

Check the water intake for blockages and ensure the impeller is functioning properly. Make sure the thermostat is not stuck and that there is adequate oil in the engine. Regularly inspect the cooling system for wear or damage.

What type of oil should I use for the Yamaha 5CMHS?

Use a high-quality 2-stroke outboard motor oil that meets or exceeds NMMA TC-W3 standards for optimal performance of your Yamaha 5CMHS.

How can I improve the fuel efficiency of my Yamaha 5CMHS?

To improve fuel efficiency, ensure the engine is well-maintained with clean filters and proper tuning. Avoid overloading the boat and maintain a steady speed. Regularly check and replace the spark plugs if needed.

What should I do if the Yamaha 5CMHS engine is running rough?

If the engine is running rough, check the spark plug for fouling and ensure the fuel is fresh. Inspect the carburetor for blockages and clean if necessary. Examine the fuel lines and filters for any signs of damage or clogs.

How do I winterize my Yamaha 5CMHS?

To winterize your Yamaha 5CMHS, drain the fuel system or add a fuel stabilizer, change the gear oil, and fog the engine cylinders with a fogging oil. Store the engine in an upright position in a dry, cool place.

How do I replace the impeller on my Yamaha 5CMHS?

To replace the impeller, first remove the lower unit of the motor. Access the water pump housing, remove the old impeller, and install the new one. Reassemble the parts carefully and ensure all seals are intact.

What propeller should I use for the Yamaha 5CMHS?

The ideal propeller for your Yamaha 5CMHS depends on your boat's specifications and usage. Consult the owner's manual or a Yamaha dealer for recommendations on pitch and diameter that match your needs.