
Tohatsu MFS15EEFL 15HP EFI 20″ Tiller Electric Motor
The Tohatsu MFS15EEFL pairs a 333cc twin-cylinder SOHC powerhead with battery-less EFI, built for aluminum utility skiffs on a 20-inch shaft.
- 333cc twin-cylinder engine produces 15 HP
- Battery-less EFI ensures easy turnkey starts
- 12A alternator charges onboard marine batteries
The Tohatsu MFS15EEFL is a 15hp electric start tiller outboard engineered with a 20-inch long shaft for aluminum utility fishing boats and jon boats requiring hand-steered control. Harnessing a compact 0.33-liter 333cc inline 2-cylinder SOHC 4-valve powerhead provides an torque curve capable of pushing small pontoon boats cleanly across inland waters. At 97 lbs of dry weight, this engine adds substantial ballast stabilization to the stern while maintaining structural balance across inflatables and auxiliary sailboat transoms matching 12-to-16-foot hulls.
Its 5400 to 6100 RPM range is how this portable engine sustains cruising speeds across long transport distances. The robust 2.15:1 gear ratio translates pure rotational power into immediate thrust to drive compact pitch propellers efficiently through shallow river currents. Engineered with dependable Japanese manufacturing reliability, this marine power plant undergoes exhaustive field testing to handle punishing everyday conditions year after year without failure.
Advanced Inline 2 Sport Portable Architecture
The 333cc inline 2-cylinder engine block configuration delivers thermal efficiency by optimizing combustion chamber heat dissipation during prolonged wide-open throttle operation. This specific propulsion platform maintains exceptionally stable operating temperatures through internal water jackets under severe manual tiller pressures.
Battery Less Electronic Fuel Injection
Battery-less electronic fuel injection systems inject precise fuel volumes directly into each cylinder to is designed to support crisp throttle response and a superior hole-shot acceleration profile. This engineering approach reduces overall consumption rates across variable cruising velocities on extended fishing trips over open inland wetlands.
Standard Rotation Mechanical Propulsion
Standard clockwise gearcase mechanics isolate steering torque entirely on small pontoon boats by rotating the prop cleanly along the central tracking alignment. This strategic balancing technique improves directional tracking stability dramatically when piloting across treacherous crosscurrent wind chops.
Long Transom Portable Boat Deployment
Aluminum utility fishing boats and auxiliary sailboat transoms deploy this 20-inch long shaft outboard to establish reliable tracking control in shallow water environments. The heavy power delivery provides planing speeds for long multi-passenger backwater transport trips.
Rigorous Portable Powerhead Maintenance Guidelines
A standard 5-year limited warranty backs this flagship portable platform to helps support comprehensive multi-season operational coverage. Saltwater marine propulsion units require consistent inspections to protect internal seals from hidden fishing line damage.Maintenance note: Follow the manufacturer’s service procedures and lubrication specifications for the engine and gearcase.
Product Specifications
Tohatsu MFS15EEFL 15HP EFI 20" Tiller Electric Motor Specs
| Brand | Tohatsu |
|---|---|
| Full Model Code | MFS15EEFL |
| Country of Origin | Japan |
| Engine Family/Series | MFS Portable |
| Engine Type | Inline 2-Cylinder 4-Stroke SOHC 4-Valve |
| Displacement | 0.33 Liters / 333 cc |
| Horsepower | 15 HP / 11.0 kW |
| Full Throttle RPM Range | 5400 - 6100 RPM |
| Fuel Induction System | Battery-Less Electronic Fuel Injection (EFI) |
| Alternator Output | 12 Amps |
| Gear Ratio | 2.15:1 |
| Shaft Length | L (20") |
| Dry Weight | 44 kg / 97 lbs |
| Bore x Stroke | 61.0 mm x 57.0 mm |
| Starting & Steering System | Electric Start (with Manual Recoil Backup) & Ergonomic Tiller Handle |
| Trim/Tilt Method | Manual Trim & Tilt (4 Open Positions & Shallow Water Drive) |
| Oil Capacity | 1.0 Liter (with filter) |
| Recommended Fuel | 87 Octane |
| Standard Warranty | 5 Years Limited |
| Application | Aluminum utility fishing boats, jon boats, small pontoon boats, inflatables, and auxiliary sailboat transoms (12-16 ft hulls) |
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