Yamaha F9.9BMHS v2 Owner's Manual

Pages 124

Year 2003

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of 124

Yamaha F9.9BMHS Specification

The Yamaha F9.9BMHS is a highly efficient and reliable outboard motor engineered for small watercraft. This model is powered by a 4-stroke, 2-cylinder engine with a displacement of 212cc, offering a superior blend of power and fuel efficiency. The engine is designed with a single overhead camshaft (SOHC) configuration, enhancing its performance and reducing its weight, which is approximately 40 kg. The motor features a manual start system that is robust and easy to use, providing dependable operation in various conditions.

Its fuel delivery is managed through a carburetor system, optimizing fuel consumption and ensuring smooth throttle response. The Yamaha F9.9BMHS includes a shallow water drive function, making it ideal for navigating in areas with low water depth. Its gear shift is positioned at the front, enabling straightforward and intuitive control. The outboard motor is equipped with a 12-liter external fuel tank, extending its operational range on a single fill.

The cooling system is water-cooled with a thermostat, maintaining optimal engine temperatures and preventing overheating during prolonged use. An integrated carrying handle and ergonomic design facilitate easy transportation and installation. This model complies with stringent emission standards, reflecting Yamaha’s commitment to environmental sustainability. Overall, the Yamaha F9.9BMHS offers a harmonious balance of power, efficiency, and user-friendly features, making it a preferred choice for boating enthusiasts seeking reliability and performance in a compact form factor.

Yamaha F9.9BMHS F.A.Q.

How do I perform the initial setup for my Yamaha F9.9BMHS outboard motor?

To perform the initial setup, ensure the motor is securely mounted on the transom, connect the fuel line, and fill the oil reservoir. Check the owner's manual for specific instructions on starting procedures and safety checks.

What is the recommended maintenance schedule for the Yamaha F9.9BMHS?

The recommended maintenance schedule includes checking the oil level and propeller before each use, inspecting the fuel system every 50 hours, and performing a comprehensive check every 100 hours or annually. Refer to the manual for a detailed maintenance plan.

How can I troubleshoot starting issues with my Yamaha F9.9BMHS?

If the engine is not starting, check the fuel supply, ensure the kill switch is engaged, and inspect the spark plug for fouling. If the problem persists, consult a Yamaha technician for further diagnosis.

What type of oil should I use for the Yamaha F9.9BMHS?

Use Yamalube 4M 10W-30 or 20W-40, which are specifically formulated for Yamaha four-stroke outboard motors. Check the owner's manual for the correct oil capacity and specifications.

How do I winterize my Yamaha F9.9BMHS outboard motor?

To winterize, drain the fuel system, change the oil, lubricate moving parts, and store the motor in a dry, cool place. Consider using a fogging oil to protect the internal components from corrosion.

What could cause the Yamaha F9.9BMHS to overheat and how can I prevent it?

Overheating can be caused by a clogged water intake or a faulty impeller. Regularly check and clean the water intake and consider replacing the impeller annually to prevent overheating.

How do I adjust the idle speed on my Yamaha F9.9BMHS?

To adjust the idle speed, locate the idle adjustment screw near the carburetor and turn it slightly clockwise to increase or counterclockwise to decrease the idle speed. Ensure the motor is warm and in neutral while making adjustments.

What is the procedure for replacing the propeller on a Yamaha F9.9BMHS?

To replace the propeller, remove the cotter pin and nut, slide the old propeller off, and install the new propeller in reverse order. Make sure to secure the nut and cotter pin tightly to prevent the propeller from coming loose.

How can I improve fuel efficiency on my Yamaha F9.9BMHS?

Improve fuel efficiency by ensuring the motor is properly tuned, using the correct propeller size, and maintaining a steady speed. Regular maintenance and cleaning of the fuel system can also help in achieving better fuel economy.

What are common signs that the Yamaha F9.9BMHS needs servicing?

Common signs include difficulty starting, reduced power, unusual noises, and excessive smoke from the exhaust. If you notice any of these symptoms, it may be time for a professional service check.