Yamaha F4SMHA 4-Stroke

Yamaha F4SMHA 4-Stroke Portable Outboard Motor: Hit the Water with Confidence

Introducing the Yamaha F4SMHA 4-Stroke Portable Outboard Motor, a remarkable addition to Yamaha’s engine lineup. Designed for ease of use and exceptional smoothness, this motor is packed with features that enhance performance and convenience, making it the perfect choice for boating enthusiasts looking for reliability and portability.

Yamaha F4SMHA 4-Stroke

Lightweight, Portable Power

Weighing in at just 27 kg (59 lbs), the Yamaha F4SMHA is a lightweight powerhouse. Its 139cc OHV single-cylinder engine delivers reliable performance while ensuring easy transport and mounting. The motor features a CDI ignition system, optimally balanced crankshaft, labyrinth exhaust, and built-in carrying handles, all contributing to its smooth and quiet operation.

Yamaha F4SMHA 4-Stroke

Key Features

• Ergonomic Design: The F4SMHA is equipped with an ergonomically designed grasp on the front and a large carry handle on the rear, making it easy to transport and mount.
• Oil Leak Prevention System: Yamaha’s unique system allows the engine to be stored or transported on either side or its front without leaking oil, providing peace of mind during transport and storage.

• Yamaha F4SMHA 4-Stroke

Maximum Efficiency

The F4SMHA is engineered for maximum fuel efficiency, achieving a 3-star C.A.R.B. emissions rating thanks to its factory-selected carburetor settings. Features that enhance efficiency include:

• Automatic Decompression: Simplifies starting and reduces engine strain.
• Built-in Auxiliary Priming: Ensures quick and reliable starts every time.
• Start-in-Gear Prevention: Enhances safety during operation.

• Yamaha F4SMHA 4-Stroke

Convenient Control

Control is crucial when operating an outboard motor, and the Yamaha F4SMHA excels in this area:

• Dynamically Balanced Throttle: The large twist-grip throttle provides smooth acceleration.
• 180-Degree Steering: Allows for easy maneuverability.
• Large F-N-R Shift Handle: Simplifies gear shifting for a more enjoyable boating experience.

Reliable Operation

The Yamaha F4SMHA is built for reliability, featuring:

• 1.1-Litre See-Through Fuel Tank: Allows for easy monitoring of fuel levels, with switchable access to an optional external tank for extended range.
• Water-Resistant Fuel Filler Cap: Prevents spills and ensures easy refueling.
• Built-in Fuel Strainer: Enhances reliability by preventing contaminants from entering the fuel system.

Easy Storage

Yamaha’s exclusive storage feature allows the F4SMHA to be stored on either side or the front grip without any risk of oil leakage. This ensures that the engine is ready to start the first time you head out on the water.

Minimizing Engine Wear

The F4SMHA includes a pressurized oiling system that minimizes engine wear, promoting extra-long engine life. This feature is crucial for maintaining performance over time, making it a smart investment for any boater.

Versatile Performance

The Yamaha F4SMHA is designed to perform in various conditions, boasting:

• 5-Step Trim Adjustment: Allows for optimal performance based on water conditions.
• 3-Step Shallow Water Drive System: Enhances maneuverability in shallow waters.
• Splined Propeller Shaft: Provides versatility with an expanded selection of available propeller sizes.

Anti-Corrosion Protection

Constructed with Yamaha’s unique YDC-30 aluminium alloy, the F4SMHA offers exceptional protection against corrosion. Additional features include:

• Zinc Coating: Enhances durability and longevity.
• High-Quality Stainless Steel: Ensures that exterior parts remain protected.
• 5-Stage Exterior Coating: Provides long-lasting protection inside and out.

Yamaha F4SMHA Specifications

Engine

• Engine Type: Four-stroke 1-cylinder
• Displacement: 139cc (8.5 ci)
• Bore and Stroke: 62 x 46mm (2.44 x 1.81 in)
• RPM Range: 4,000-5,000
• Compression Ratio: 8.9:1
• Induction System: OHV (overhead valve)
• Alternator Output: 6 Amp (optional: requires charging kit)
• Fuel Delivery: Carburetor
• Starting: Manual
• Ignition: CDI
• Lubrication: Wet sump
• Degree of Trim/Tilt: 5 positions / 69°
• Exhaust: Above propeller
• Cooling: Raw water, Thermostatic Control
• Gear Shift: F/N/R
• Gear Ratio: 13/27 (2.08:1)

Fuel and Lubrication

• Recommended Fuel: Unleaded Gasoline (Minimum Pump Octane 87)
• Recommended Oil: Yamalube 4-M FC-W 10W-30 or 20W-40
• Oil Capacity: 0.6 litre

Dimensions

• Shaft Length (Standard): 38.1 cm (15″)
• Dry Weight: 27 kg (59 lbs)

Conclusion

The Yamaha F4SMHA 4-Stroke Portable Outboard Motor is the perfect companion for those looking to hit the water with confidence. With its lightweight design, powerful performance, and a host of user-friendly features, this motor is ideal for a variety of boating activities. Whether you’re fishing, cruising, or exploring, the F4SMHA ensures a smooth and reliable experience.