Yamaha Four Stroke 50HP Outboard Engine

Yamaha Four Stroke 50HP Outboard Engine
F50

With a sleek low-profile cowling design, matched with a silky-smooth four-cylinder engine configuration, inside of a compact and light-weight body, the F50 looks as good as it performs. 

Within the F50 is a proven single overhead cam, 996cc, four-cylinder marine engine, that delivers an excellent power-to-weight ratio and exceptional refinement and fuel-efficiency. Out of the entire 4-cylinder 50 horsepower category, the F60 is the only Japanese Manufactured engine in its class; which translates to superior reliability, refinement and quality that Yamaha engines are renowned for. 

Utilising Yamaha’s exclusive Multi-Point Fuel Injection System (EFI) and Electronic Control Module (ECM), the F50 delivers impressive power and torque, smooth and comfortable operation, low noise levels and emissions, and the best fuel-economy in its class.

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996cc 4-Cylinder Marine Engine

The 1.0 litre, eight-valve, single-overhead camshaft, four-cylinder, long stroke design delivers ultra-smooth, useable power with low noise and vibration levels.

Large Single Throttle Valve

Air flow is precisely delivered to all four cylinders based on the demands of the driver and combustion conditions. The air is pulse-tuned, before it reaches the injectors of the EFI system which promotes a clean and efficient burn for maximum economy and power.

Variable Trolling Control

Yamaha’s variable trolling control allows you to precisely adjust the engine’s idling speed from 650 to 900 RPM in 50 RPM increments. The ability to finely tune the trolling speed allows fisherman to perfect their lure presentation when chasing different species of fish.

Prime Start

Exclusive to Yamaha, Prime Start makes starting a Yamaha outboard as easy as starting a car. It allows the engine to be started cold by automatically controlling the engine ‘warming up’ process - eliminating the need for a conventional choke. You no longer need to ‘warm up’ your engine by revving it in neutral.

Power Trim and Tilt

Yamaha’s push-button trim control makes engine trim and tilt adjustments quick, smooth and easy, across a wide trim range. The negative trim settings allow for improved acceleration and the ability to bring the boat onto the plane more quickly.

Electronic Fuel Injection

The Multi-Point Electronic Fuel Injection (EFI) system, injects the right amount of fuel into the combustion chamber at the optimum timing. This system takes into account engine speed and load requirements to achieve maximum engine performance including ‘first-time, every-time’ hot and cold starting.

Fresh Water Flushing System

Simply connect a hose to the easy access connector to flush salt and dirt from the outboard without having to run the engine. Flushing the engine after each use reduces corrosion and extends the engines life.

High-Output Alternator

A 12-Volt 16-Amp high-output alternator ensures that power is always available to start the engine, even after long periods of idling or running at low revs. This not only provides extra starting power, but delivers sufficient power to run the wide array of on-board electronic devices used in modern boating.

Labyrinth Exhaust System

Yamaha’s proven labyrinth exhaust system reduces engine noise at low RPM and idle. A water sealed outer wall around the exhaust muffler effectively reduces exhaust tone for whisper quiet operation and enhances cooling which protects the exhaust system against corrosion.

Engine Type

4-Stroke, SOHC In-line 4

Bore x Stroke (mm)

65 x 75

Fuel Tank Capacity (l)

User Selectible

Displacement (cc)

996.0

Fuel Management

EFI

Ignition

TCI

OEDA Emission Rating

3

Lubrication System

Wet-sump

Alternator Output

12V – 16A with rectifier regulator

Gear Ratio

1.85 : 1

Starter System

Electric

Operation Method

Mechanical Control (Optional Tiller Handle Available)

Trim & Tilt Method

Power Trim & Tilt

Digital Gauges

Optional

Transom Height (mm [inch])

L: 527 [20.7]

Weight

L: 113

Conventional - 6Y5 Round Gauges

Yamaha’s conventional digital multi-function gauges provide the real-time data required to maximise outboard performance and fuel efficiency. The two and three gauge illuminated display options provide rpm, trim, oil, speed, distance, time, overheating, battery, fuel economy/flow/consumption stats.

Command Link - 6Y8 Round Gauges

Using Local Area Network (LAN) technology, these digital round gauges provide accurate and real-time tachometer, speed and fuel management stats, including fuel flow/consumption/economy (up to two tanks), trim level, battery voltage, push button trolling speed adjustments and more.

Command Link - 6YC High Definition Gauge

This high definition, colour display uses Local Area Network (LAN) technology to deliver accurate and real-time stats for single and twin engine setups. The customisable day/night gauge delivers information on fuel flow/ economy/ consumption, trim level, battery charge, speed, push button trolling and more.

703 Side-Mounted Control

One of Yamaha's best selling controls, this mechanical remote offers comfort, simplicity and flexibility. With its new ergonomic grip, reversible right-hand or left-hand installation, and convenient trim and tilt operation, this control offers all-round functionality and value.

6x3 Concealed Side-Mounted Control

With its stylish chrome finish and ergonomic design, this mechanical control not only looks good, but provides effortless one-hand operation. The trim and tilt switch is comfortably located on the handle and features easily accessible neutral warm-up controls and externally adjustable throttle friction.

704 Premium Single Binnacle Control

This highly-polished, stylish looking, top mounted control allows for effortless one-handed control. The ergonomic design features a thumb operated trim and tilt switch built into the handle, as well as shift and throttle control functions, for convenient and comfortable operation.

Genuine Yamaha Propellers

Prop choice makes a huge difference to outboard acceleration, top-end speed, handling and fuel efficiency. That is why Yamaha continues to push the technological boundaries in the design and development of our leading range of high performance props - ensuring every Yamaha outboard performs at its peak.

Alloy White G Series

These props deliver Yamaha's high-quality design and performance in a low-cost, lightweight propeller. They offer a good all-round choice for Yamaha outboards, coming in a wide range of sizes and pitches to suit every power requirement.

YCOP Remote Control Security System

Yamaha’s Customer Outboard Protection (Y-COP) engine immobiliser system is easy to use and highly effective in stopping unauthorised start-ups when your boat is unattended.

Multifunction Tiller Handle

With the latest technologies, ergonomic design and features, Yamaha's optional Multi-Function Tiller Handle delivers effortless control, maneuverability and comfort. Trim, shift, throttle, stop switch, variable trolling and integrated overheating and low oil pressure warning alerts are all built into the handle.

Yamaha F50

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