Description

Tohatsu 25HP EFI Outboard Motor | Electric Start, Tiller Steering | 15″ Short Shaft | MFS25DEFS

The Tohatsu MFS25DEFS 25HP EFI Outboard Motor is a lightweight and high-performance three-cylinder four-stroke outboard designed for boaters who need reliable power, exceptional fuel efficiency, and advanced technology. Equipped with Electronic Fuel Injection (EFI), electric start with manual backup, and a 15-inch short shaft, this versatile outboard is ideal for fishing boats, inflatables, utility vessels, and recreational watercraft.

Engineered with Tohatsu’s latest innovations, the MFS25DEFS delivers one of the best power-to-weight ratios in its class. Through extensive redesign of major engine components, Tohatsu reduced overall weight significantly while maintaining durability, power, and reliability. The advanced battery-less EFI system ensures effortless starting, smooth acceleration, and optimized fuel economy, helping you get more time on the water with fewer fuel stops.

Whether you’re navigating rivers, lakes, coastal waters, or working in commercial environments, the MFS25DEFS provides dependable performance backed by Tohatsu’s renowned engineering excellence.

Key Features

• Battery-less Electronic Fuel Injection (EFI)
• Electric Start with Manual Backup
• Lightweight 3-Cylinder Four-Stroke Design
• Tiller Steering Control
• 15″ Short Shaft Configuration
• Best-in-Class Power-to-Weight Ratio
• Advanced Cross-Flow Induction System
• Digital CD Ignition
• High Output 17.5 Amp Alternator
• Optimized 2.17:1 Gear Ratio
• Smooth and Quiet Operation
• Excellent Fuel Efficiency
• Adjustable Steering Friction and Trim Tab
• EPA and CARB Approved Low Emissions
• Durable Marine-Grade Construction

Ideal Applications

The Tohatsu MFS25DEFS is perfect for:

• Fishing Boats
• Inflatable Boats
• Aluminum Boats
• Jon Boats
• Utility Boats
• Tender Boats
• Recreational Watercraft
• Commercial Marine Applications

Motor Specifications

• Engine Type: Tohatsu MFS25DEFS Four Stroke
• Horsepower: 25HP
• Cylinders: 3-Cylinder
• Shaft Length: 15″ Short Shaft
• Steering: Tiller
• Starting System: Electric Start + Manual Start
• Weight: 137 lbs
• Full Throttle Range: 5000–6000 RPM
• Displacement: 526cc
• Fuel System: Electronic Fuel Injection (EFI)
• Alternator Output: 17.5 Amp
• Gear Ratio: 2.17:1
• Warranty: Tohatsu 5-Year Limited Warranty

Standard Equipment

• Standard Tiller Handle
• External Fuel Tank (6.6 Gallons)
• Fuel Line Hose
• 12-Volt Charging System
• Service Tool Kit & Parts
• Stop Switch Lanyard
• Owner’s Manual

Propeller sold separately.

Advanced EFI Technology

Battery-Less EFI System

The advanced battery-less EFI technology provides precise fuel delivery, easier starts, improved throttle response, and exceptional fuel economy without requiring battery power for fuel injection operation.

Superior Fuel Efficiency

The EFI system continuously optimizes fuel delivery, helping reduce fuel consumption while maximizing engine performance and operating range.

Reliable Starting and Smooth Acceleration

Electric start combined with EFI technology ensures quick, dependable starts and responsive acceleration across the entire RPM range.

Lightweight Design Advantage

Through extensive redesign of the crankshaft and intake manifold, Tohatsu significantly reduced engine weight while maintaining durability and performance. This results in:

• Easier handling and installation
• Improved boat performance
• Better fuel economy
• Enhanced balance and maneuverability

Advanced Cross-Flow Induction

The advanced cross-flow induction system improves airflow efficiency, enhancing combustion performance and delivering stronger acceleration with smooth power delivery.

Optimized Gear Ratio Performance

The optimized 2.17:1 gear ratio provides:

• Increased low-end torque
• Improved hole-shot performance
• Better load-carrying capability
• Enhanced propeller efficiency
• Strong top-end performance

High Output Charging System

The integrated 17.5-amp alternator keeps batteries charged and powers onboard electronics, fish finders, navigation systems, and other marine accessories.

Benefits of the 15″ Short Shaft

The 15-inch short shaft configuration is ideal for boats with standard-height transoms and offers:

• Excellent maneuverability
• Efficient power transfer
• Improved shallow-water operation
• Easy compatibility with many small to mid-size boats

Frequently Asked Questions

Does the MFS25DEFS feature EFI technology?

Yes. The MFS25DEFS is equipped with Tohatsu’s advanced battery-less Electronic Fuel Injection (EFI) system.

Is electric start included?

Yes. This model includes electric start as well as a manual backup starting system.

Does the package include a fuel tank?

Yes. A 6.6-gallon external fuel tank and fuel line hose are included.

Does it include a charging system?

Yes. The outboard features a high-output 12-volt charging system powered by a 17.5-amp alternator.

Is a propeller included?

No. The propeller is sold separately, allowing you to select the best propeller for your specific boating needs.

What warranty is included?

The Tohatsu MFS25DEFS is backed by Tohatsu’s comprehensive 5-Year Limited Warranty.

Why Choose the Tohatsu MFS25DEFS?

The Tohatsu MFS25DEFS 25HP EFI Outboard Motor combines lightweight engineering, advanced EFI technology, strong three-cylinder performance, and excellent fuel efficiency into one versatile package. With electric start convenience, dependable reliability, and outstanding power-to-weight performance, this outboard is an excellent choice for recreational and commercial boaters seeking premium performance and long-term value.