New Yamaha F50LB 50HP 4 Stroke Long Shaft Outboard Engine

New Yamaha F50LB 50HP 4 Stroke Long Shaft Outboard Engine

MIDRANGE 50 hp

For inshore fishing performance in a few less horses, turn to Yamaha’s 1-liter 50-hp midrange.  Inspired by the F70’s ingenious design, it combines light weight, exhilarating performance, valuable efficiency and the option of variable trolling via our Multi-Function Tiller Handle, Command Link® Tachometer or a helm-mounted remote Variable Trolling RPM Switch (VTS).

Available for mechanical remote or tiller control
Only 247 pounds
Available in a 20” shaft
Powerful 16-amp alternator
Optional Variable Trolling RPM Switch (VTS)
Available in a T50 High-Thrust model for pushing heavy loads

SPECS :

Engine Type    4-Stroke, SOHC In-line 4
Displacement    996 cc
Bore x Stroke    65 x 75 mm
Recommended Max RPM    5500-6000
Lubrication System    Wet-sump
Fuel Management    EFI
Ignition    TCI
Starter System    Electric
Alternator Output    12V – 17A with rectifier regulator
Operation Method    Remote control
Trim & Tilt Method    Power trim & tilt
Digital Gauges    Standard
Digital Network Gauges with Fuel Management    Optional
Gear Ratio    1.85 : 1
OEDA Emission Rating    ????
Scavenging    Single Overhead Camshaft
Previous model/code    F50HETL

Dimensions

Transom Length
F50LB : 527 mm (20.7 in)
F50LHB : 527 mm (20.7 in)
Weight
F50LB : 110 kg
F50LHB : 114 kg
CDI-E: CDI-Electronic Automatic
CDI-M: CDI-Microcomputer
TCI: Transistor Controlled Ignition

The Yamaha F50LB is a 50HP 4-stroke, long-shaft outboard engine known for its balance of light weight, fuel efficiency, and quiet operation. This engine uses a 996cc inline 4-cylinder configuration with Electronic Fuel Injection (EFI) for smooth, responsive power delivery.

Key Technical Specifications

According to Yamaha Motor, here are the technical details for the F50LB model:

Engine Type: 4-Stroke, SOHC In-line 4-cylinder.
Engine Displacement: 996cc.
Shaft Length: 20 inches (Long Shaft).
Weight: Approximately 112 kg (247 lbs).
Starting System: Electric.
Trim & Tilt Method: Standard Power Trim & Tilt.
Alternator Output: 12V – 16A with rectifier regulator.
Maximum RPM Range: 5000 – 6000 RPM.
Outboard Global Store
Outboard Global Store

Features
Variable Trolling RPM: Allows idle speed adjustment in 50 RPM increments (from 650 to 900 RPM), ideal for fishing.

Prime Start: Allows easy cold starting without the need for a manual choke, similar to starting a car.

Freshwater Cleaning System: Easy-access connector for flushing salt and debris from the engine without starting the engine.

Color Options: Available in Yamaha’s signature gray and new Pearlescent White.