AFRAMARINE

4-Stroke MFS100A – MID RANGE Outboard Engine

The Aframarihe MFS100A is a high-performance 100 HP four-stroke outboard designed for versatility and reliability. Built on the proven legacy of smaller mid-range engines, the MFS100A combines innovative technology with strong performance to deliver smooth acceleration, excellent torque, and dependable power across the entire RPM range.

A standout feature is the 4-2-1 Performance Tuned Exhaust, which provides superior torque for faster hole shots, reduced drag, and enhanced efficiency. Coupled with fine-tuned ECU programming, the MFS100A allows your boat to reach top-end speed quickly, whether for light recreational craft or heavier commercial applications.

Equipped with industry-leading features like Variable Idle System, freshwater flushing system, and a high-output 41A alternator, the MFS100A is engineered for both performance and convenience.


Key Features

✓ 4-Cylinder 100 HP Four-Stroke Engine
✓ 4-2-1 Performance Tuned Exhaust for Superior Torque
✓ Variable Idle System (Adjustable 650–850 RPM)
✓ Low Gear Ratio (2.08:1) for Enhanced Low-End Power
✓ Freshwater Flushing System for Easy Maintenance
✓ High-Output 41A Alternator
✓ Electric Start with Remote or Tiller Control Options
✓ Power Trim & Tilt Standard
✓ Through-Prop Exhaust for Quiet, Efficient Operation
✓ Engine Protection Systems: Overheat Buzzer, Oil Pressure Warning

Description

Specifications

Engine

Item Details
Engine Type 4 Cylinder, Four-Stroke
Output 100 PS (73.6 kW)
Displacement 1,995 cc (121.6 cu.in.)
Bore × Stroke 84 × 90 mm (3.31 × 3.54 in)
Max RPM Range 5,150 – 5,850
Fuel System Electronic Fuel Injection
Fuel Type Unleaded Gasoline (87 Octane or higher)
Oil Type NMMA Certified FC-W® 4-Stroke Oil
Oil Capacity 4.2 L (1.11 US gal.) with filter

Controls & Starting

Item Details
Starting System Electric
Control Type Remote Control or Tiller Handle
Gear Shift Forward – Neutral – Reverse
Gear Ratio 2.08:1

Dimensions & Weight

Item Details
Transom Height 20″, 25″
Weight* 178 kg (392 lbs.)

*Weight based on lightest configuration.

Electrical

Item Details
Alternator Output 12V, 492W, 41A

Standard Features

  • Start-in-Gear Protection

  • Thermostat-Controlled Cooling System

  • Overheat Buzzer

  • Power Trim & Tilt

  • Oil Pressure Warning

  • Variable Idle Speed


Available Models

Model Shaft Length Cylinders Electric Start Tiller Handle Remote Control 12V Charging Power Trim & Tilt
MFS100AETL 20″ 4 Standard See Note See Note Standard Standard
MFS100AETUL 25″ 4 Standard See Note See Note Standard Standard

S = Standard

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