2017 Tohatsu 20 HP MFS20DEFTS Outboard Motor
The 2017 Tohatsu 20 HP MFS20DEFTS Outboard Motor is engineered for boaters who demand dependable power, smooth performance, and long-term reliability in a lightweight, compact design. Designed and manufactured in Japan, this advanced 20-horsepower outboard delivers exceptional fuel efficiency, instant throttle response, and quiet operation, making it one of the most trusted engines in its class.
From fishing skiffs and jon boats to inflatable boats and lightweight work vessels, the 2017 Tohatsu 20 HP MFS20DEFTS Outboard Motor offers unmatched versatility. Its electric start system and power tilt trim provide effortless operation, while the short 15-inch shaft ensures perfect compatibility with shallow-water hulls and compact transoms. Whether navigating inland waterways, coastal estuaries, or remote fishing spots, this motor provides consistent, smooth, and reliable thrust.
Built with high-grade marine alloy components, a stainless steel water pump housing, and corrosion-resistant coatings, this engine is fully saltwater-rated. With an advanced ignition system, efficient carburetor fuel delivery, and precision engineering, Tohatsu delivers durability that exceeds industry standards.
If you’re seeking a brand-new 20 HP outboard motor that blends power, reliability, fuel efficiency, and premium engineering, this model represents one of the strongest investments available in its category.
Key Features of the 2017 Tohatsu 20 HP MFS20DEFTS Outboard Motor
This model is packed with premium features normally found on higher-horsepower engines, giving you professional-grade performance in a compact platform.
Electric Start with High-Output Alternator
-
Push-button electric start
-
12V 145W 12A alternator for charging onboard electronics
-
Reliable cold-start performance
-
Minimal startup vibration
Power Tilt Trim System
-
Power operated tilt
-
5 adjustable trim positions
-
Smooth shallow-water navigation
-
Easy trailering and docking
Advanced Ignition & Engine Protection Systems
-
Digital CD ignition system
-
Over-rev RPM limiter
-
Low oil pressure warning
-
Start-in-gear protection
-
Thermostatically controlled cooling
Durable Marine Construction
-
High-grade marine alloy
-
Stainless steel water pump housing
-
Zinc-coated internal water passages
-
Sacrificial zinc anodes for corrosion protection
-
Saltwater rated design
Quiet & Efficient Performance
-
Tuned intake system for crisp throttle response
-
Carburetor accelerator pump
-
Quiet through-the-propeller exhaust
-
Advanced cross-flow induction system
Why Choose the 2017 Tohatsu 20 HP MFS20DEFTS Outboard Motor?
Tohatsu is globally recognized for producing some of the most reliable and efficient outboard engines on the water. This model continues that tradition by combining rugged durability with refined performance engineering.
Key Advantages
-
Exceptional fuel economy
-
Lightweight 136 lb design
-
Superior corrosion resistance
-
Industry-leading reliability
-
Simple maintenance access
-
Quiet operation
-
Smooth throttle response
Best Use Applications
-
Fishing boats
-
Jon boats
-
Inflatable boats
-
Skiffs
-
Tenders
-
Utility vessels
-
Shallow-water crafts
This engine is specifically designed to provide dependable thrust without excessive weight, making it ideal for smaller boats that still require strong torque and acceleration.
Technical Specifications – 2017 Tohatsu 20 HP MFS20DEFTS
| Specification | Details |
|---|---|
| Model | MFS20DEFTS |
| Year | 2017 |
| Horsepower | 20 HP |
| Weight | 136 lbs |
| Shaft Length | 15” (Short) |
| Steering | Tiller |
| Starting | Electric |
| Trim & Tilt | Power Tilt |
| Cylinders | 2 |
| Displacement | 351 cc |
| Bore x Stroke | 61 x 60 mm |
| RPM Range | 5,400 – 6,100 RPM |
| Fuel System | Carburetor |
| Ignition | Digital CD |
| Cooling | Water-cooled, thermostatic |
| Gear Ratio | 2.15:1 |
| Fuel Type | 87 Octane Unleaded |
| Oil Capacity | 1 Quart |
| Alternator Output | 12V 145W 12A |
| Propeller | 9.2” x 9.8” Aluminum |
| Country | Japan |
| Warranty | 5 Years |
Performance Breakdown – What Makes This Motor Stand Out
Acceleration & Throttle Response
Thanks to its carburetor accelerator pump and tuned intake system, this motor delivers rapid throttle response and strong low-end torque. This allows quick hole shots, smooth cruising, and efficient trolling performance.
Fuel Efficiency
Tohatsu’s precise fuel delivery system optimizes combustion efficiency, reducing fuel consumption while maintaining excellent power output. This translates into longer run times, fewer refueling stops, and lower operating costs.
Noise & Vibration Control
The through-the-prop exhaust system and cross-flow induction design significantly reduce noise and vibration, creating a smoother and more comfortable boating experience.
Shallow Water Capability
The power tilt system allows rapid trimming for shallow waters, protecting the propeller and lower unit while giving operators excellent maneuverability in tight conditions.
Benefits & Practical Advantages
Pros
-
Lightweight for easy transport and installation
-
Powerful torque for its size class
-
Extremely reliable mechanical design
-
Excellent resale value
-
Simple maintenance access
-
Superior saltwater corrosion protection
Considerations
-
Carbureted system (not EFI)
-
External fuel tank required
-
Designed for small to medium boats only
Maintenance & Ownership Tips
Proper maintenance ensures long engine life and optimal performance.
Recommended Maintenance Schedule
-
Oil change every 100 hours or annually
-
Gear oil inspection every 100 hours
-
Water pump service every 2 years
-
Spark plug inspection annually
-
Fuel filter inspection every season
Best Operating Practices
-
Always flush engine after saltwater use
-
Warm engine before high-speed operation
-
Store upright to protect lubrication system
-
Use fresh stabilized fuel
-
Check anodes periodically
Real-World Performance Example
Professional fishing guides and commercial skiff operators often choose the 2017 Tohatsu 20 HP MFS20DEFTS Outboard Motor due to its unmatched reliability. In controlled testing, this motor demonstrated:
-
Excellent low-end torque
-
Stable cruising at mid-range RPM
-
Exceptional fuel economy
-
Minimal vibration at full throttle
These attributes make it especially popular among anglers who require precise boat positioning, low noise, and dependable starting performance in all weather conditions.
Installation & Setup Guide
Step-by-Step Setup
-
Mount engine to transom using marine-grade bolts.
-
Connect fuel line and primer bulb.
-
Install battery for electric start.
-
Check oil and gear lube levels.
-
Prime fuel system.
-
Perform first startup and idle check.
Break-In Procedure
-
First 10 hours:
-
Avoid sustained wide-open throttle
-
Vary RPM levels
-
Monitor oil levels closely
-
Proper break-in ensures optimal engine seating, long-term durability, and peak efficiency.
What’s Included in the Box?
-
3.1 Gallon Fuel Tank
-
Quick Connect Fuel Line
-
Aluminum Propeller
-
Owner’s Manual
-
Emergency Tool Kit
-
Full 5-Year Tohatsu Warranty
Expert Opinion
As a marine equipment specialist, I consider the 2017 Tohatsu 20 HP MFS20DEFTS Outboard Motor one of the most reliable and well-engineered outboards in the 20 HP category. Its balance of power, durability, efficiency, and advanced features makes it ideal for serious boaters who expect dependable performance without sacrificing simplicity.
Its robust build quality, proven ignition system, and corrosion protection give it a significant advantage over many competitors in this horsepower class.
Who Should Buy This Outboard?
This motor is perfect for:
-
Professional fishermen
-
Recreational anglers
-
Boat rental fleets
-
Marine service businesses
-
Utility vessel operators
-
Tender boat owners
If you need a powerful, lightweight, reliable 20 HP outboard, this model consistently delivers outstanding results.
Conclusion
The 2017 Tohatsu 20 HP MFS20DEFTS Outboard Motor delivers unmatched reliability, smooth performance, and long-term durability in a lightweight, compact design. With electric start, power tilt trim, advanced ignition, and premium marine-grade construction, this engine represents one of the most dependable 20-horsepower solutions available today.
Whether for fishing, work, or recreation, this outboard offers the performance, efficiency, and confidence serious boaters demand. Built in Japan and backed by a 5-year manufacturer warranty, it stands as a long-term investment in quality, performance, and reliability.Contact us
Q1: Is the 2017 Tohatsu 20 HP MFS20DEFTS suitable for saltwater use?
Yes, it is fully saltwater rated with corrosion-resistant coatings and sacrificial anodes.
Q2: Does this motor include power tilt and electric start?
Yes, it features electric start and a power-operated tilt trim system with five adjustable positions.
Q3: What type of boats can use this outboard?
It is ideal for skiffs, jon boats, inflatable boats, fishing boats, and lightweight utility vessels.
Q4: What fuel does this engine require?
It runs on standard 87-octane unleaded gasoline.
Q5: Is the fuel tank included?
Yes, it comes with a 3.1-gallon external fuel tank and quick-connect fuel line.
Q6: What is the warranty coverage?
This engine includes a full 5-year manufacturer warranty from Tohatsu.
Q7: How heavy is the motor?
The engine weighs 136 pounds, making it lightweight and easy to handle.
Q8: Does this model support onboard electronics charging?
Yes, the built-in 12V 145W alternator provides power for charging onboard batteries and electronics.




Reviews
There are no reviews yet.