Tohatsu 25HP MFS25DEFTS 4-Stroke Outboard – 15″ Shaft, Tiller, Electric Start/Power Tilt
The Tohatsu MFS25DEFTS is a 25HP 0.5L inline-three four-stroke outboard motor featuring a 15-inch short shaft, power tilt, and a tiller handle.
- Engine type: Four-stroke I3 500cc displacement block.
- Fuel system: Electronic fuel injection optimizes power delivery.
- Shaft length: 15 inch short shaft size.
- Features: Power Tilt for easy engine lifting.
- Control: Tiller handle with integrated tilt switch.
Description
Tohatsu MFS25DEFTS 25HP Outboard Motor
In order to resolve the complexities of precise trim management on short-transom performance hulls, the Tohatsu 25 MFS25DEFTS utilizes a 3-cylinder SOHC architecture with a 526cc displacement. This engineering configuration features a battery-less Electronic Fuel Injection system and a 2.17 to 1 gear ratio to maximize rotational efficiency on compact aluminum vessels. By optimizing the torque curve through this specialized gearset, the motor achieves superior hydrodynamic efficiency when paired with 15-inch transom hulls requiring integrated power tilt and a multi-function tiller for effortless manual handling and agile shallow water navigation.
Maintaining structural integrity ensures the Tohatsu 25 MFS25DEFTS remains impervious to degradation through YDC-30 alloy construction and high-grade sacrificial anodes for extreme saltwater protection. This offshore propulsion system integrates a 17.5-amp alternator charging system to support onboard electronics while the freshwater flushing port simplifies maintenance during extended service intervals. The 4-stroke platform utilizes advanced thermal management circuits to ensure full regulatory compliance with EPA Tier 3 standards for low-emission transit while delivering the structural stability required for long-term professional or recreational maritime application.
Key Features of Tohatsu 25 MFS25DEFTS
- Output delivers 25HP of consistent 3-cylinder propulsive torque
- Electronic Fuel Injection ensures 15 percent fuel saving efficiency
- Total weight is 154 lbs for balanced hull mounting
- Transom mount fits 15 inch short shaft applications
- Electric start provides instantaneous ignition and power trim control
- YDC-30 alloy housing protects internal drive components from salt
- Commercial and private use includes 5 year limited warranty
Tohatsu 25HP MFS25DEFTS Specs
| Brand | Tohatsu |
| Full Model Code | MFS25DEFTS (Aqua Marine Blue) |
| Country of Origin | Japan |
| Engine Family/Series | MFS FourStroke (New Gen) |
| Engine Type | Inline 3 / 4-Stroke |
| Displacement | 0.50 Liters (500 cc) |
| Horsepower | 25 HP @ 5500 RPM |
| Full Throttle RPM Range | 5000 - 6000 RPM |
| Fuel Induction System | Battery-Less Electronic Fuel Injection (EFI) |
| Alternator Output | 17 Amps |
| Gear Ratio | 2.17:1 |
| Shaft Length | 15" (Short) |
| Dry Weight | 62 kg (137 lbs) |
| Bore x Stroke | 61 x 57 mm |
| Starting & Steering System | Electric Start w/ Multi-Function Tiller |
| Trim/Tilt Method | Power Tilt |
| Oil Capacity | 1.8L |
| Recommended Fuel | 87 Octane |
| Standard Warranty | 5-Year Limited |
| Application | Premium short-shaft tiller with integrated power tilt for effortless shallow water adjustment. |
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