2019 Yamaha F20LWB 20 HP Outboard Motor | 20-Inch 4-Stroke EFI

The 2019 Yamaha F20LWB 20 HP Outboard Motor is a compact and efficient four-stroke outboard designed for boaters who want dependable Yamaha performance in a lightweight 20 HP package.

The Yamaha F20LWB features a 432cc two-cylinder, SOHC four-stroke engine with Electronic Fuel Injection (EFI), electric and manual starting, remote mechanical steering and a 20-inch long shaft. Yamaha’s 2019 specifications rate the engine at 20 HP at 5,500 RPM with a 5,000–6,000 RPM full-throttle operating range. (Yamaha Motor)

Its combination of EFI, a high-output 16-amp charging system and compact two-cylinder design makes the F20LWB an excellent choice for appropriately rated fishing boats, aluminum boats, skiffs, inflatables and other small marine vessels.

Key Features

• 20 HP Yamaha outboard
• 2019 model
• Yamaha F20LWB
• 4-stroke engine
• 2-cylinder inline configuration
• 432cc displacement
• Electronic Fuel Injection (EFI)
• SOHC design
• Electric and manual start
• Remote mechanical steering
• 20-inch long shaft
• 5,000–6,000 RPM full-throttle range
• 20 HP at 5,500 RPM
• 16-amp alternator
• 2.08:1 gear ratio
• Forward, neutral and reverse
• Wet-sump lubrication
• 87-octane unleaded gasoline

Yamaha 20 HP Four-Stroke Performance

The F20LWB uses Yamaha’s 432cc two-cylinder four-stroke platform. The engine features a single overhead camshaft and two valves per cylinder.

The 20 HP engine produces its rated power at approximately 5,500 RPM, with a full-throttle operating range of 5,000–6,000 RPM. (Yamaha Motor)

The 432cc displacement gives the Yamaha F20 a strong power-to-weight combination for smaller boats while maintaining the straightforward operation expected from a Yamaha four-stroke outboard.

Electronic Fuel Injection

The Yamaha F20LWB uses Electronic Fuel Injection (EFI) rather than a conventional carburetor.

Yamaha’s 2019 F20 documentation identifies the engine’s fuel induction system as EFI and highlights the battery-less EFI system used across the F20 platform. (Yamaha Motor)

EFI helps provide consistent fuel delivery and easy engine operation across different operating conditions.

Electric and Manual Start

The F20LWB combines electric and manual starting capability.

This gives the operator the convenience of electric starting while retaining a manual starting option. Yamaha’s specifications identify electric/manual starting for the applicable F20 configurations. (Yamaha Motor)

20-Inch Long Shaft

The L in F20LWB identifies the long-shaft configuration.

The F20LWB uses a 20-inch shaft, making it suitable for boats designed around a 20-inch transom. Yamaha documentation lists the long-shaft transom height at approximately 551 mm / 21.7 inches. (Yamaha Motor)

Always verify your boat’s required shaft length before purchasing.

Remote Mechanical Steering

Unlike tiller-steer versions of the F20, the F20LWB is configured for remote mechanical steering.

This makes the model particularly appropriate for boats with a remote helm and conventional throttle/shift control system. Current Yamaha dealer specifications also identify the F20LWB as a remote mechanical configuration. (Yamaha Motorsports and Marine)

16-Amp Charging System

The F20 platform features a 16-amp alternator output, providing electrical power for compatible onboard accessories and electronics.

Yamaha’s 2019 technical information lists the alternator output at 16 amps. (Yamaha Motor)

Yamaha F20LWB Specifications

Specifications should be verified against the engine’s serial number and original documentation because equipment specifications can vary by market or configuration. (Yamaha Motor)

Ideal Applications

The 2019 Yamaha F20LWB is suitable for appropriately rated:

• Aluminum fishing boats
• Small fishing boats
• Skiffs
• Utility boats
• Small workboats
• Inflatable boats
• Tenders
• Lake boats
• River fishing boats
• Recreational boats

Always confirm that the boat’s maximum horsepower rating and transom specifications are compatible with the engine.

Why Choose the Yamaha F20LWB?

The Yamaha F20LWB combines 20 HP four-stroke performance with EFI, electric/manual starting, remote mechanical steering and a 20-inch shaft.

Its 432cc twin-cylinder engine and 16-amp charging system provide a useful balance of performance, efficiency and electrical capacity for smaller vessels. (Yamaha Motor)

For buyers searching for a 2019 Yamaha 20 HP outboard, Yamaha F20LWB, Yamaha F20 20-inch shaft, or Yamaha 20 HP EFI outboard, this model is a strong exact-match product.

Shop the 2019 Yamaha F20LWB 20 HP Outboard Motor today.