Suzuki DF2.5S 2.5HP 4-Stroke Outboard – 15in Shaft
Quiet by design, Suzuki DF2.5S turns out 2.5 horsepower. A 15-inch shaft fits standard transoms. Popular among owners of dinghies, jon boats, and small tenders. Owners choose it for steady output without excess weight.
- Rated at 2.5 horsepower
- Fits 15-inch transom height
- Backed by standard marine warranty
- Straightforward to service and maintain
- 2.5 horsepower, 4-stroke reliability
Description
Small displacement tenders achieve reliable thrust instantly with the 13.5-kilogram Suzuki DF2.5S clamped to the transom. The compact 68cc single-cylinder block forces steady forward momentum, pushing loaded inflatable dinghies across choppy marina basins without heavy battery dependencies. Measuring your mounting bracket verifies this 15 inch short shaft portable outboard operates without dragging the gearcase excessively through shallow tidal flats.
Maneuver effortlessly through tight marina slips by leveraging the 360-degree tiller steering as a simple mechanical solution for instant reverse thrust. You rotate the engine completely backward to stop the vessel without relying on a complex internal gearbox. Engineers cast the ultra-portable lower unit using corrosion-resistant aluminum alloys. This material barrier stops rapid metal pitting when leaving the kicker motor clamped to saltwater transoms.
Key Features of Suzuki DF2.5S
- 13.5 Kilogram Dry Weight: Maximizes absolute portability, allowing a single operator to lift the engine physically onto high sailboat decks.
- 15-Inch Standard Shaft: Matches low dinghy transoms perfectly, preventing lower unit drag and maximizing fuel efficiency on light hulls.
- 360-Degree Tiller Steering: Allows the operator to spin the engine completely around, providing full reverse thrust instantly without a gearbox shifter.
- Integrated 0.3L Oil Capacity: Ensures adequate splash lubrication for the internal valvetrain, preventing thermal breakdown during long continuous runs.
- 68cc Four-Stroke Powerhead: Produces smooth low-end torque internally, pushing heavy square-back canoes steadily against coastal tidal currents.
- Four-Position Manual Tilt: Adjusts the running angle physically, allowing the operator to lift the gearcase over shallow coastal reefs safely.
- Water-Cooled Engine Block: Prevents internal thermal failure completely, allowing continuous high-RPM running across wide bays without overheating.
- 2.15:1 Gear Ratio: Transfers single-cylinder horsepower to the propeller securely, maintaining forward momentum on heavily loaded dinghies.
- Manual Recoil Starter: Engages the flywheel directly via a physical pull cord, guaranteeing reliable ignition without heavy 12-volt battery systems.
- Clean Four-Stroke Combustion: Burns unleaded fuel highly efficiently without messy two-stroke oil mixing, keeping your tender completely free of oil slicks.
Why Choose Suzuki DF2.5S
You purchase this 15-inch portable block strictly for small tenders or square-back canoes requiring absolute simplicity. It lacks remote steering and relies entirely on physical tiller operation. Sourcing a lightweight suzuki portable outboard motor keeps your tender legally powered.
- Measure your dinghy transom to confirm a 15-inch vertical drop requirement.
- Ensure the operator possesses the physical strength to lift 13.5 kilograms safely.
- Comply with strict harbor emissions laws utilizing clean-burning four-stroke technology.
Ideal Application and Vessel Fitment
This ultra-portable 15-inch outboard thrives on small inflatable tenders, square-back canoes, and rigid fiberglass dinghies requiring minimalist power. Because it features a built-in fuel system and weighs a mere 13.5 kilograms, operators can easily physically carry it from the main deck down to the tender. Rotating the tiller 360 degrees provides complete directional thrust, making this lightweight portable outboard motor an incredibly nimble propulsion choice for navigating crowded anchorages and tight marina fairways.
Warranty, Support and Maintenance
Authorized recreational operation receives a 3-Year Limited Warranty alongside a 3-Year Corrosion Warranty. Registered commercial applications fall under a strict 1-Year Limited Warranty with zero corrosion coverage applied to the block. Scheduled maintenance requires replacing gearcase lubricants and checking spark plugs at manual-specified intervals. Always save all physical service records. Your engine serial number acts as the only way to source exact genuine replacement parts. For product details and order support, Mulmotor offers assistance before your purchase is placed.
Suzuki DF2.5 S Specs
| Brand | Suzuki |
| Full Model Code | DF2.5S |
| Country of Origin | Thailand |
| Engine Family/Series | Portable Series |
| Engine Type | OHV 2-Valve, 4-Stroke 1-Cylinder |
| Displacement | 0.068 Liters (68 cc) |
| Horsepower | 2.5 HP (1.8 kW) |
| Full Throttle RPM Range | 5250 - 5750 RPM |
| Fuel Induction System | Carburetor |
| Alternator Output | N/A |
| Gear Ratio | 2.15:1 |
| Shaft Length | S: 381 mm (15 in) |
| Dry Weight | 13.5 kg (29 lbs) |
| Bore x Stroke | 48 x 38 mm |
| Starting & Steering System | Manual Recoil & Tiller Handle (360° Steering) |
| Trim/Tilt Method | Manual 4-Position |
| Oil Capacity | 0.3 Liters |
| Recommended Fuel | 87 Octane |
| Standard Warranty | 3-Year Limited Warranty |
| Application | Canoes, Small Inflatables, Tenders, 8-10ft Dinghies |












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