Yamaha 50HP Tiller Steer Outboard – Powerful 4-Stroke EFI
The Yamaha 50HP Tiller Steer Outboard combines Yamaha’s compact 1.0-liter four-cylinder four-stroke platform with direct tiller steering for fishing boats, aluminum boats, skiffs, utility craft and other compatible vessels.
Producing 50 horsepower from a lightweight 996cc engine, the Yamaha F50 combines Electronic Fuel Injection, electric starting and a 20-inch shaft with a published engine weight of approximately 247 lb.
When properly configured with Yamaha’s Multi-Function Tiller Handle, the Yamaha 50HP Tiller Steer Outboard provides direct engine control without requiring a conventional steering wheel and remote helm arrangement.
Browse our complete Yamaha Outboard Motors collection or compare other 4-Stroke Outboard Motors.
Why Choose the Yamaha 50HP Tiller Steer Outboard?
The Yamaha F50 provides a useful combination of moderate horsepower and relatively low engine weight.
Key features include:
- 50HP four-stroke power
- 996cc inline four-cylinder engine
- Electronic Fuel Injection
- Electric starting
- 20-inch shaft
- 247 lb published weight
- 16-amp alternator output
- 1.85:1 gear ratio
- Freshwater flushing system
- Yamaha Multi-Function Tiller Handle compatibility
- Variable Trolling RPM capability depending on rigging
- Power trim and tilt on applicable F50 configuration
This makes the Yamaha 50HP Tiller Steer Outboard particularly attractive for boat owners who want direct engine control without moving into a much heavier horsepower class.
996cc Four-Cylinder Engine
The Yamaha F50 uses a 996cc inline four-cylinder four-stroke engine.
The engine has a 65mm bore and 75mm stroke and produces its rated 50HP at 5,500 RPM.
Yamaha specifies a full-throttle operating range of 5,000–6,000 RPM.
The compact four-cylinder configuration helps keep published engine weight at approximately 247 lb while delivering 50HP for appropriately rated boats.
Electronic Fuel Injection
The Yamaha 50HP Tiller Steer Outboard uses Yamaha Electronic Fuel Injection.
EFI electronically manages fuel delivery according to engine operating requirements, providing consistent starting and controlled fuel delivery across the operating range.
Actual fuel consumption will depend on factors including:
- Boat weight
- Hull design
- Propeller
- Passenger load
- Engine RPM
- Trim
- Water conditions
For official engine specifications, consult Yamaha Outboards.
Yamaha 50HP Tiller Steer Outboard Specifications
| Specification | Details |
|---|---|
| Engine | Yamaha F50 |
| Horsepower | 50HP |
| Engine Type | Inline 4-Cylinder Four-Stroke |
| Displacement | 996cc / 1.0L |
| Bore × Stroke | 65 × 75mm |
| Fuel Induction | Electronic Fuel Injection |
| Full Throttle RPM | 5,000–6,000 RPM |
| Rated Horsepower | 50HP @ 5,500 RPM |
| Starting System | Electric |
| Gear Ratio | 1.85:1 |
| Gear Shift | Forward / Neutral / Reverse |
| Published Weight | Approx. 247 lb / 112 kg |
| Alternator Output | 16A at W.O.T. |
| Shaft Length | 20 inches |
| Recommended Fuel | Minimum 87 Octane |
| Maximum Ethanol Blend | E10 |
| Lubrication | Wet Sump |
| Tiller Control | Compatible/configuration dependent |
These specifications correspond to Yamaha’s current F50 platform. Exact equipment should be confirmed for the engine package being purchased.
Multi-Function Tiller Handle
When equipped with Yamaha’s Multi-Function Tiller Handle, the Yamaha 50HP Tiller Steer Outboard gives the operator direct control from the stern.
Depending on the exact tiller configuration, integrated controls can include functions such as throttle, shifting, engine stop/start and trim control.
A tiller configuration can be particularly useful for:
- Aluminum fishing boats
- Utility boats
- Skiffs
- Work boats
- River boats
- Other open boats
Before ordering, confirm that the advertised engine package actually includes the tiller handle and required rigging.
Variable Trolling RPM
Depending on the selected rigging, Yamaha’s Variable Trolling RPM system can provide greater low-speed engine control.
This is especially useful for anglers who need to maintain a controlled trolling speed.
Trolling performance will still depend on the boat, propeller, current, wind and load.
Yamaha 50HP for Fishing Boats
The Yamaha 50HP Tiller Steer Outboard is particularly suited to compatible fishing boats where simplicity and direct engine control are priorities.
Before selecting a 50HP engine, check:
- Maximum boat horsepower
- Transom weight capacity
- Transom height
- Passenger load
- Fishing equipment
- Fuel capacity
- Battery requirements
- Propeller requirements
Never exceed the boat manufacturer’s horsepower or transom-weight limits.
Yamaha 50HP for Aluminum Boats and Skiffs
The approximately 247 lb published engine weight can make the F50 attractive for appropriately rated aluminum boats and skiffs.
However, engine weight is only one consideration.
Correct engine selection should also account for boat length, hull construction, load distribution and intended use.
The Yamaha 50HP Tiller Steer Outboard should only be installed when the vessel is properly rated for the engine.
20-Inch Shaft
Yamaha currently specifies a 20-inch shaft for the F50.
Correct transom and engine mounting height are important for maintaining appropriate propeller position and overall performance.
Incorrect mounting can contribute to:
- Propeller ventilation
- Poor acceleration
- Excessive drag
- Handling problems
Verify your boat’s transom configuration before ordering.
16-Amp Charging Output
The F50 provides a published 16-amp alternator output at wide-open throttle.
This can support properly configured marine electrical equipment such as navigation electronics, lighting and other accessories.
The complete electrical load of the boat should still be considered when selecting batteries and accessories.
Saltwater and Freshwater Operation
The Yamaha F50 can be operated in appropriate freshwater and marine environments when maintained correctly.
After saltwater operation, flushing and corrosion inspection are particularly important.
Routine maintenance should include inspection of:
- Sacrificial anodes
- Cooling passages
- Propeller
- Gearcase
- Electrical connections
- Mounting hardware
- Fuel system
Yamaha incorporates a freshwater flushing device that allows the cooling system to be flushed according to manufacturer procedures.
Yamaha F50 Maintenance
Regular maintenance helps protect the Yamaha 50HP Tiller Steer Outboard and maintain dependable operation.
Typical service areas include:
- Engine oil
- Oil filter
- Gearcase lubricant
- Fuel filters
- Spark plugs
- Water pump
- Sacrificial anodes
- Propeller
- Battery
- Cooling system
Always follow the service schedule corresponding to your exact engine model and serial number.
Repowering With a Yamaha 50HP
The Yamaha F50 can also be considered for replacing an older 40HP or 50HP outboard where the boat manufacturer permits it.
Before repowering, verify:
- Maximum horsepower
- Engine weight capacity
- 20-inch transom compatibility
- Steering requirements
- Tiller configuration
- Fuel system
- Battery
- Propeller
- Existing rigging
Browse our complete Outboard Engines collection if your boat requires another horsepower class.
Frequently Asked Questions
Is the Yamaha 50HP Tiller Steer Outboard a 4-stroke?
Yes. The Yamaha F50 uses a four-stroke inline four-cylinder engine.
What is the Yamaha F50 displacement?
The F50 has a displacement of 996cc, or approximately 1.0 liter.
How much does the Yamaha F50 weigh?
Yamaha currently lists the F50 at approximately 247 lb (112 kg).
Does the Yamaha F50 have fuel injection?
Yes. The Yamaha F50 uses Electronic Fuel Injection.
What shaft length does the Yamaha F50 have?
Yamaha currently lists the F50 with a 20-inch shaft.
What is the Yamaha F50 gear ratio?
The Yamaha F50 has a 1.85:1 gear ratio.
What fuel does the Yamaha F50 require?
Yamaha specifies minimum 87-octane gasoline, with a maximum ethanol blend of E10.
Does the Yamaha F50 come with a tiller handle?
The current U.S. F50LC is listed by Yamaha as a remote mechanical-control engine. Yamaha’s Multi-Function Tiller Handle is compatible with this engine platform, but you should confirm whether the tiller and required components are included in this specific Amitag package before purchasing.
Is the Yamaha F50 suitable for fishing?
Yes, it can be an excellent fishing-boat engine when the boat is designed and rated for 50HP.
Does this product include a manufacturer warranty?
Warranty coverage depends on the specific engine, market and sale conditions. Review our Warranty Policy or contact Amitag Outboards to confirm the coverage applicable to this engine.
Buy Yamaha 50HP Tiller Steer Outboard
The Yamaha 50HP Tiller Steer Outboard combines a compact 996cc four-cylinder engine, Electronic Fuel Injection and lightweight 247 lb design with the direct-control advantages available through Yamaha’s tiller system.
For fishing boats, aluminum boats, skiffs and utility craft designed for 50HP propulsion, the Yamaha F50 provides a versatile four-stroke option.
Before ordering, confirm the engine configuration, tiller equipment, 20-inch shaft compatibility and your boat’s horsepower and weight limits.
Browse more Yamaha Outboard Motors or explore our complete Outboard Engines selection.
Specifications and included equipment may vary by model year, configuration and market. Confirm the exact engine and package contents before purchasing.
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